USB changes for 2.5.68

diff -Nru a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
@@ -961,8 +961,8 @@
 	spin_lock_irqsave (&hcd_data_lock, flags);
 	list_del_init (&urb->urb_list);
 	dev = urb->dev;
-	usb_put_dev (dev);
 	spin_unlock_irqrestore (&hcd_data_lock, flags);
+	usb_put_dev (dev);
 }
 
 

diff -Nru a/drivers/usb/class/usb-midi.c b/drivers/usb/class/usb-midi.c
@@ -820,7 +820,7 @@
 	struct list_head      *devs, *mdevs;
 	struct usb_midi_state *s;
 	struct usb_mididev    *m;
-	int flags;
+	unsigned long flags;
 	int succeed = 0;
 
 #if 0

diff -Nru a/drivers/usb/net/kaweth.c b/drivers/usb/net/kaweth.c
@@ -744,7 +744,7 @@
 		}
 	}
 
-	private_header = __skb_push(skb, 2);
+	private_header = (u16 *)__skb_push(skb, 2);
 	*private_header = cpu_to_le16(skb->len-2);
 	kaweth->tx_skb = skb;
 

diff -Nru a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c
@@ -314,8 +314,12 @@
 			: (in_interrupt () ? "in_interrupt" : "can sleep"))
 
 #ifdef DEBUG
-#define devdbg(usbnet, fmt, arg...) \
-	printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net.name, ## arg)
+#define devdbg(usbnet, fmt, arg...)				\
+	do {							\
+		printk(KERN_DEBUG "%s:", (usbnet)->net.name);	\
+		printk(fmt, ## arg);				\
+		printk("\n");					\
+	} while (0)
 #else
 #define devdbg(usbnet, fmt, arg...) do {} while(0)
 #endif

diff -Nru a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
@@ -17,11 +17,6 @@
  */
 
 #include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <asm/irq.h>
 
 #ifdef CONFIG_USB_DEBUG
 	#define DEBUG

@@ -29,6 +24,11 @@
 	#undef DEBUG
 #endif
 
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/irq.h>
 #include <linux/usb.h>
 #include "hcd.h"
 

@@ -214,7 +214,7 @@
 	hub = hcd->self.root_hub;
 	hcd->state = USB_STATE_QUIESCING;
 
-	dev_dbg (*hcd->controller, "roothub graceful disconnect\n");
+	dev_dbg (hcd->controller, "roothub graceful disconnect\n");
 	usb_disconnect (&hub);
 
 	hcd->driver->stop (hcd);

@@ -326,7 +326,7 @@
 
 	retval = -EBUSY;
 	if (hcd->state != USB_STATE_SUSPENDED) {
-		dev_dbg (*hcd->controller, "can't resume, not suspended!\n");
+		dev_dbg (hcd->controller, "can't resume, not suspended!\n");
 		goto done;
 	}
 	hcd->state = USB_STATE_RESUMING;

@@ -336,7 +336,7 @@
 
 	retval = hcd->driver->resume (hcd);
 	if (!HCD_IS_RUNNING (hcd->state)) {
-		dev_dbg (*hcd->controller, "resume fail, retval %d\n", retval);
+		dev_dbg (hcd->controller, "resume fail, retval %d\n", retval);
 		usb_hc_died (hcd);
 // FIXME:  recover, reset etc.
 	} else {

diff -Nru a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
@@ -791,14 +791,22 @@
 void usb_disconnect(struct usb_device **pdev)
 {
 	struct usb_device	*dev = *pdev;
-	struct usb_bus		*bus = dev->bus;
-	struct usb_operations	*ops = bus->op;
+	struct usb_bus		*bus;
+	struct usb_operations	*ops;
 	int			i;
 
 	might_sleep ();
 
-	if (!dev)
+	if (!dev) {
+		pr_debug ("%s nodev\n", __FUNCTION__);
 		return;
+	}
+	bus = dev->bus;
+	if (!bus) {
+		pr_debug ("%s nobus\n", __FUNCTION__);
+		return;
+	}
+	ops = bus->op;
 
 	*pdev = NULL;
 

diff -Nru a/drivers/usb/misc/speedtch.c b/drivers/usb/misc/speedtch.c
@@ -20,7 +20,19 @@
  ******************************************************************************/
 
 /*
- *  Written by Johan Verrept ([email protected])
+ *  Written by Johan Verrept, maintained by Duncan Sands ([email protected])
+ *
+ *  1.6:	- No longer opens a connection if the firmware is not loaded
+ *  		- Added support for the speedtouch 330
+ *  		- Removed the limit on the number of devices
+ *  		- Module now autoloads on device plugin
+ *  		- Merged relevant parts of sarlib
+ *  		- Replaced the kernel thread with a tasklet
+ *  		- New packet transmission code
+ *  		- Changed proc file contents
+ *  		- Fixed all known SMP races
+ *  		- Many fixes and cleanups
+ *  		- Various fixes by Oliver Neukum ([email protected])
  *
  *  1.5A:	- Version for inclusion in 2.5 series kernel
  *		- Modifications by Richard Purdie ([email protected])

@@ -28,6 +40,7 @@
  *		udsl_usb_send_data_context->urb to a pointer and adding code
  *		to alloc and free it
  *		- remove_wait_queue() added to udsl_atm_processqueue_thread()
+ *		- Duncan Sands ([email protected]) is the new maintainer
  *
  *  1.5:	- fixed memory leak when atmsar_decode_aal5 returned NULL.
  *		(reported by [email protected])

@@ -77,9 +90,9 @@
 #define PACKETDEBUG(arg...)
 #endif
 
-#define DRIVER_AUTHOR	"Johan Verrept, [email protected]"
-#define DRIVER_DESC	"Driver for the Alcatel SpeedTouch USB ADSL modem"
-#define DRIVER_VERSION	"1.5A"
+#define DRIVER_AUTHOR	"Johan Verrept, Duncan Sands <[email protected]>"
+#define DRIVER_DESC	"Alcatel SpeedTouch USB driver"
+#define DRIVER_VERSION	"1.6"
 
 #define SPEEDTOUCH_VENDORID		0x06b9
 #define SPEEDTOUCH_PRODUCTID		0x4061

diff -Nru a/drivers/usb/misc/speedtch.c b/drivers/usb/misc/speedtch.c
@@ -406,11 +406,12 @@
 **  encode  **
 *************/
 
+static const unsigned char zeros[ATM_CELL_PAYLOAD];
+
 static void udsl_groom_skb (struct atm_vcc *vcc, struct sk_buff *skb)
 {
 	struct udsl_control *ctrl = UDSL_SKB (skb);
-	unsigned int i, zero_padding;
-	unsigned char zero = 0;
+	unsigned int zero_padding;
 	u32 crc;
 
 	ctrl->atm_data.vcc = vcc;

@@ -436,8 +437,7 @@
 	ctrl->aal5_trailer [3] = skb->len;
 
 	crc = crc32_be (~0, skb->data, skb->len);
-	for (i = 0; i < zero_padding; i++)
-		crc = crc32_be (crc, &zero, 1);
+	crc = crc32_be (crc, zeros, zero_padding);
 	crc = crc32_be (crc, ctrl->aal5_trailer, 4);
 	crc = ~crc;
 

diff -Nru a/drivers/usb/misc/speedtch.c b/drivers/usb/misc/speedtch.c
@@ -579,8 +579,7 @@
 						atmsar_vcc->vcc->push (atmsar_vcc->vcc, new);
 					} else {
 						dbg
-						    ("dropping incoming packet : rx_inuse = %d, vcc->sk->rcvbuf = %d, skb->true_size = %d",
-						     atomic_read (&atmsar_vcc->vcc->rx_inuse),
+						    ("dropping incoming packet : vcc->sk->rcvbuf = %d, skb->true_size = %d",
 						     atmsar_vcc->vcc->sk->rcvbuf, new->truesize);
 						dev_kfree_skb (new);
 					}

diff -Nru a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
@@ -432,43 +432,47 @@
 		dbg("send break failed");
 }
 
-static int acm_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
+static int acm_tty_tiocmget(struct tty_struct *tty, struct file *file)
 {
 	struct acm *acm = tty->driver_data;
-	unsigned int mask, newctrl;
 
-	if (!ACM_READY(acm)) return -EINVAL;
+	if (!ACM_READY(acm))
+		return -EINVAL;
 
-	switch (cmd) {
+	return (acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) |
+	       (acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) |
+	       (acm->ctrlin  & ACM_CTRL_DSR ? TIOCM_DSR : 0) |
+	       (acm->ctrlin  & ACM_CTRL_RI  ? TIOCM_RI  : 0) |
+	       (acm->ctrlin  & ACM_CTRL_DCD ? TIOCM_CD  : 0) |
+	       TIOCM_CTS;
+}
 
-		case TIOCMGET:
+static int acm_tty_tiocmset(struct tty_struct *tty, struct file *file,
+			    unsigned int set, unsigned int clear)
+{
+	struct acm *acm = tty->driver_data;
+	unsigned int newctrl;
 
-			return put_user((acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) |
-				(acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) |
-				(acm->ctrlin  & ACM_CTRL_DSR ? TIOCM_DSR : 0) |
-				(acm->ctrlin  & ACM_CTRL_RI  ? TIOCM_RI  : 0) |
-				(acm->ctrlin  & ACM_CTRL_DCD ? TIOCM_CD  : 0) |
-				 TIOCM_CTS, (unsigned long *) arg);
+	if (!ACM_READY(acm))
+		return -EINVAL;
 
-		case TIOCMSET:
-		case TIOCMBIS:
-		case TIOCMBIC:
+	newctrl = acm->ctrlout;
+	set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (set & TIOCM_RTS ? ACM_CTRL_RTS : 0);
+	clear = (clear & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (clear & TIOCM_RTS ? ACM_CTRL_RTS : 0);
 
-			if (get_user(mask, (unsigned long *) arg))
-				return -EFAULT;
+	newctrl = (newctrl & ~clear) | set;
 
-			newctrl = acm->ctrlout;
-			mask = (mask & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (mask & TIOCM_RTS ? ACM_CTRL_RTS : 0);
+	if (acm->ctrlout == newctrl)
+		return 0;
+	return acm_set_control(acm, acm->ctrlout = newctrl);
+}
 
-			switch (cmd) {
-				case TIOCMSET: newctrl  =  mask; break;
-				case TIOCMBIS: newctrl |=  mask; break;
-				case TIOCMBIC: newctrl &= ~mask; break;
-			}
+static int acm_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct acm *acm = tty->driver_data;
 
-			if (acm->ctrlout == newctrl) return 0;
-			return acm_set_control(acm, acm->ctrlout = newctrl);
-	}
+	if (!ACM_READY(acm))
+		return -EINVAL;
 
 	return -ENOIOCTLCMD;
 }

@@ -750,7 +754,9 @@
 	.unthrottle =		acm_tty_unthrottle,
 	.chars_in_buffer =	acm_tty_chars_in_buffer,
 	.break_ctl =		acm_tty_break_ctl,
-	.set_termios =		acm_tty_set_termios
+	.set_termios =		acm_tty_set_termios,
+	.tiocmget =		acm_tty_tiocmget,
+	.tiocmset =		acm_tty_tiocmset,
 };
 
 /*

diff -Nru a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
@@ -785,6 +785,51 @@
 	return ((count < begin+length-off) ? count : begin+length-off);
 }
 
+static int serial_tiocmget (struct tty_struct *tty, struct file *file)
+{
+	struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+	struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+	if (!serial)
+		goto exit;
+
+	dbg("%s - port %d", __FUNCTION__, port->number);
+
+	if (!port->open_count) {
+		dbg("%s - port not open", __FUNCTION__);
+		goto exit;
+	}
+
+	if (serial->type->tiocmget)
+		return serial->type->tiocmget(port, file);
+
+exit:
+	return -EINVAL;
+}
+
+static int serial_tiocmset (struct tty_struct *tty, struct file *file,
+			    unsigned int set, unsigned int clear)
+{
+	struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+	struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+	if (!serial)
+		goto exit;
+
+	dbg("%s - port %d", __FUNCTION__, port->number);
+
+	if (!port->open_count) {
+		dbg("%s - port not open", __FUNCTION__);
+		goto exit;
+	}
+
+	if (serial->type->tiocmset)
+		return serial->type->tiocmset(port, file, set, clear);
+
+exit:
+	return -EINVAL;
+}
+
 void usb_serial_port_softint(void *private)
 {
 	struct usb_serial_port *port = (struct usb_serial_port *)private;

@@ -1286,6 +1331,8 @@
 	.break_ctl =		serial_break,
 	.chars_in_buffer =	serial_chars_in_buffer,
 	.read_proc =		serial_read_proc,
+	.tiocmget =		serial_tiocmget,
+	.tiocmset =		serial_tiocmset,
 };
 
 

diff -Nru a/drivers/usb/serial/usb-serial.h b/drivers/usb/serial/usb-serial.h
@@ -251,6 +251,8 @@
 	int  (*chars_in_buffer)	(struct usb_serial_port *port);
 	void (*throttle)	(struct usb_serial_port *port);
 	void (*unthrottle)	(struct usb_serial_port *port);
+	int  (*tiocmget)	(struct usb_serial_port *port, struct file *file);
+	int  (*tiocmset)	(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
 
 	void (*read_int_callback)(struct urb *urb, struct pt_regs *regs);
 	void (*read_bulk_callback)(struct urb *urb, struct pt_regs *regs);

diff -Nru a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
@@ -101,6 +101,8 @@
 static void belkin_sa_set_termios	(struct usb_serial_port *port, struct termios * old);
 static int  belkin_sa_ioctl		(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
 static void belkin_sa_break_ctl		(struct usb_serial_port *port, int break_state );
+static int  belkin_sa_tiocmget		(struct usb_serial_port *port, struct file *file);
+static int  belkin_sa_tiocmset		(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
 
 
 static struct usb_device_id id_table_combined [] = {

@@ -138,6 +140,8 @@
 	.ioctl =		belkin_sa_ioctl,
 	.set_termios =		belkin_sa_set_termios,
 	.break_ctl =		belkin_sa_break_ctl,
+	.tiocmget =		belkin_sa_tiocmget,
+	.tiocmset =		belkin_sa_tiocmset,
 	.attach =		belkin_sa_startup,
 	.shutdown =		belkin_sa_shutdown,
 };

@@ -502,65 +506,77 @@
 }
 
 
-static int belkin_sa_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+static int belkin_sa_tiocmget (struct usb_serial_port *port, struct file *file)
+{
+	struct belkin_sa_private *priv = usb_get_serial_port_data(port);
+	unsigned long control_state;
+	unsigned long flags;
+	
+	dbg("%s", __FUNCTION__);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	control_state = priv->control_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return control_state;
+}
+
+
+static int belkin_sa_tiocmset (struct usb_serial_port *port, struct file *file,
+			       unsigned int set, unsigned int clear)
 {
 	struct usb_serial *serial = port->serial;
-	__u16 urb_value; /* Will hold the new flags */
 	struct belkin_sa_private *priv = usb_get_serial_port_data(port);
-	int ret = 0;
-	int mask;
 	unsigned long control_state;
 	unsigned long flags;
+	int retval;
+	int rts = 0;
+	int dtr = 0;
 	
+	dbg("%s", __FUNCTION__);
+
 	spin_lock_irqsave(&priv->lock, flags);
 	control_state = priv->control_state;
+
+	if (set & TIOCM_RTS) {
+		control_state |= TIOCM_RTS;
+		rts = 1;
+	}
+	if (set & TIOCM_DTR) {
+		control_state |= TIOCM_DTR;
+		dtr = 1;
+	}
+	if (clear & TIOCM_RTS) {
+		control_state &= ~TIOCM_RTS;
+		rts = 0;
+	}
+	if (clear & TIOCM_DTR) {
+		control_state &= ~TIOCM_DTR;
+		dtr = 0;
+	}
+
+	priv->control_state = control_state;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	/* Based on code from acm.c and others */
-	switch (cmd) {
-	case TIOCMGET:
-		return put_user(control_state, (unsigned long *) arg);
-		break;
+	retval = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, rts);
+	if (retval < 0) {
+		err("Set RTS error %d", retval);
+		goto exit;
+	}
 
-	case TIOCMSET: /* Turns on and off the lines as specified by the mask */
-	case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
-	case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
-		if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-
-		if ((cmd == TIOCMSET) || (mask & TIOCM_RTS)) {
-			/* RTS needs set */
-			urb_value = ((cmd == TIOCMSET) && (mask & TIOCM_RTS)) || (cmd == TIOCMBIS) ? 1 : 0;
-			if (urb_value)
-				control_state |= TIOCM_RTS;
-			else
-				control_state &= ~TIOCM_RTS;
-
-			if ((ret = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, urb_value)) < 0) {
-				err("Set RTS error %d", ret);
-				goto cmerror;
-			}
-		}
+	retval = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, dtr);
+	if (retval < 0) {
+		err("Set DTR error %d", retval);
+		goto exit;
+	}
+exit:
+	return retval;
+}
 
-		if ((cmd == TIOCMSET) || (mask & TIOCM_DTR)) {
-			/* DTR needs set */
-			urb_value = ((cmd == TIOCMSET) && (mask & TIOCM_DTR)) || (cmd == TIOCMBIS) ? 1 : 0;
-			if (urb_value)
-				control_state |= TIOCM_DTR;
-			else
-				control_state &= ~TIOCM_DTR;
-			if ((ret = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, urb_value)) < 0) {
-				err("Set DTR error %d", ret);
-				goto cmerror;
-			}
-		}
-cmerror:
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->control_state = control_state;
-		spin_unlock_irqrestore(&priv->lock, flags);
-		return ret;
-		break;
-					
+
+static int belkin_sa_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
 	case TIOCMIWAIT:
 		/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
 		/* TODO */

diff -Nru a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
@@ -460,6 +460,9 @@
 static void digi_break_ctl( struct usb_serial_port *port, int break_state );
 static int digi_ioctl( struct usb_serial_port *port, struct file *file,
 	unsigned int cmd, unsigned long arg );
+static int digi_tiocmget( struct usb_serial_port *port, struct file *file );
+static int digi_tiocmset( struct usb_serial_port *port, struct file *file,
+	unsigned int set, unsigned int clear );
 static int digi_write( struct usb_serial_port *port, int from_user,
 	const unsigned char *buf, int count );
 static void digi_write_bulk_callback( struct urb *urb, struct pt_regs *regs );

@@ -526,6 +529,8 @@
 	.ioctl =			digi_ioctl,
 	.set_termios =			digi_set_termios,
 	.break_ctl =			digi_break_ctl,
+	.tiocmget =			digi_tiocmget,
+	.tiocmset =			digi_tiocmset,
 	.attach =			digi_startup,
 	.shutdown =			digi_shutdown,
 };

@@ -551,6 +556,8 @@
 	.ioctl =			digi_ioctl,
 	.set_termios =			digi_set_termios,
 	.break_ctl =			digi_break_ctl,
+	.tiocmget =			digi_tiocmget,
+	.tiocmset =			digi_tiocmset,
 	.attach =			digi_startup,
 	.shutdown =			digi_shutdown,
 };

@@ -1211,39 +1218,46 @@
 }
 
 
-static int digi_ioctl( struct usb_serial_port *port, struct file *file,
-	unsigned int cmd, unsigned long arg )
+static int digi_tiocmget( struct usb_serial_port *port, struct file *file )
 {
+	struct digi_port *priv = usb_get_serial_port_data(port);
+	unsigned int val;
+	unsigned long flags;
+
+	dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num);
+
+	spin_lock_irqsave( &priv->dp_port_lock, flags );
+	val = priv->dp_modem_signals;
+	spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+	return val;
+}
+
 
+static int digi_tiocmset( struct usb_serial_port *port, struct file *file,
+	unsigned int set, unsigned int clear )
+{
 	struct digi_port *priv = usb_get_serial_port_data(port);
 	unsigned int val;
-	unsigned long flags = 0;
+	unsigned long flags;
 
+	dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num);
+
+	spin_lock_irqsave( &priv->dp_port_lock, flags );
+	val = (priv->dp_modem_signals & ~clear) | set;
+	spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+	return digi_set_modem_signals( port, val, 1 );
+}
+
+
+static int digi_ioctl( struct usb_serial_port *port, struct file *file,
+	unsigned int cmd, unsigned long arg )
+{
+
+	struct digi_port *priv = usb_get_serial_port_data(port);
 
 dbg( "digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd );
 
 	switch (cmd) {
-
-	case TIOCMGET:
-		spin_lock_irqsave( &priv->dp_port_lock, flags );
-		val = priv->dp_modem_signals;
-		spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-		if( copy_to_user((unsigned int *)arg, &val, sizeof(int)) )
-			return( -EFAULT );
-		return( 0 );
-
-	case TIOCMSET:
-	case TIOCMBIS:
-	case TIOCMBIC:
-		if( copy_from_user(&val, (unsigned int *)arg, sizeof(int)) )
-			return( -EFAULT );
-		spin_lock_irqsave( &priv->dp_port_lock, flags );
-		if( cmd == TIOCMBIS )
-			val = priv->dp_modem_signals | val;
-		else if( cmd == TIOCMBIC )
-			val = priv->dp_modem_signals & ~val;
-		spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-		return( digi_set_modem_signals( port, val, 1 ) );
 
 	case TIOCMIWAIT:
 		/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/

diff -Nru a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
@@ -175,6 +175,8 @@
 static void ftdi_sio_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
 static void ftdi_sio_read_bulk_callback	(struct urb *urb, struct pt_regs *regs);
 static void ftdi_sio_set_termios	(struct usb_serial_port *port, struct termios * old);
+static int  ftdi_sio_tiocmget		(struct usb_serial_port *port, struct file *file);
+static int  ftdi_sio_tiocmset		(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
 static int  ftdi_sio_ioctl		(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
 static void ftdi_sio_break_ctl		(struct usb_serial_port *port, int break_state );
 

@@ -198,6 +200,8 @@
 	.ioctl =		ftdi_sio_ioctl,
 	.set_termios =		ftdi_sio_set_termios,
 	.break_ctl =		ftdi_sio_break_ctl,
+	.tiocmget =		ftdi_sio_tiocmget,
+	.tiocmset =		ftdi_sio_tiocmset,
 	.attach =		ftdi_sio_startup,
         .shutdown =             ftdi_sio_shutdown,
 };

@@ -219,6 +223,8 @@
 	.ioctl =		ftdi_sio_ioctl,
 	.set_termios =		ftdi_sio_set_termios,
 	.break_ctl =		ftdi_sio_break_ctl,
+	.tiocmget =		ftdi_sio_tiocmget,
+	.tiocmset =		ftdi_sio_tiocmset,
 	.attach =		ftdi_8U232AM_startup,
         .shutdown =             ftdi_sio_shutdown,
 };

@@ -823,125 +829,100 @@
 	return;
 } /* ftdi_sio_set_termios */
 
-static int ftdi_sio_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+static int ftdi_sio_tiocmget (struct usb_serial_port *port, struct file *file)
 {
 	struct usb_serial *serial = port->serial;
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
-	__u16 urb_value=0; /* Will hold the new flags */
-	char buf[2];
-	int  ret, mask;
+	char *buf = NULL;
+	int ret = -EINVAL;
+	int size;
 	
-	dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
+	dbg("%s", __FUNCTION__);
 
-	/* Based on code from acm.c and others */
-	switch (cmd) {
+	buf = kmalloc(2, GFP_KERNEL);
+	if (!buf)
+		goto exit;
 
-	case TIOCMGET:
-		dbg("%s TIOCMGET", __FUNCTION__);
-		if (priv->ftdi_type == sio){
-			/* Request the status from the device */
-			if ((ret = usb_control_msg(serial->dev, 
-						   usb_rcvctrlpipe(serial->dev, 0),
-						   FTDI_SIO_GET_MODEM_STATUS_REQUEST, 
-						   FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
-						   0, 0, 
-						   buf, 1, WDR_TIMEOUT)) < 0 ) {
-				err("%s Could not get modem status of device - err: %d", __FUNCTION__,
-				    ret);
-				return(ret);
-			}
-		} else {
-			/* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same 
-			   format as the data returned from the in point */
-			if ((ret = usb_control_msg(serial->dev, 
-						   usb_rcvctrlpipe(serial->dev, 0),
-						   FTDI_SIO_GET_MODEM_STATUS_REQUEST, 
-						   FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
-						   0, 0, 
-						   buf, 2, WDR_TIMEOUT)) < 0 ) {
-				err("%s Could not get modem status of device - err: %d", __FUNCTION__,
-				    ret);
-				return(ret);
-			}
-		}
+	if (priv->ftdi_type == sio) {
+		size = 1;
+	} else {
+		/* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same 
+		   format as the data returned from the in point */
+		size = 2;
+	}
+	ret = usb_control_msg(serial->dev,
+			      usb_rcvctrlpipe(serial->dev, 0),
+			      FTDI_SIO_GET_MODEM_STATUS_REQUEST,
+			      FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
+			      0, 0, buf, size, WDR_TIMEOUT);
+	if (ret < 0) {
+		err("%s Could not get modem status of device - err: %d",
+		    __FUNCTION__, ret);
+		goto exit;
+	}
+
+	ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
+		(buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
+		(buf[0]  & FTDI_SIO_RI_MASK  ? TIOCM_RI  : 0) |
+		(buf[0]  & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0);
+
+exit:
+	kfree(buf);
+	return ret;
+}
 
-		return put_user((buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
-				(buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
-				(buf[0]  & FTDI_SIO_RI_MASK  ? TIOCM_RI  : 0) |
-				(buf[0]  & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0),
-				(unsigned long *) arg);
-		break;
-
-	case TIOCMSET: /* Turns on and off the lines as specified by the mask */
-		dbg("%s TIOCMSET", __FUNCTION__);
-		if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-		urb_value = ((mask & TIOCM_DTR) ? HIGH : LOW);
-		if (set_dtr(serial->dev, usb_sndctrlpipe(serial->dev, 0),urb_value) < 0){
-			err("Error from DTR set urb (TIOCMSET)");
-		}
-		urb_value = ((mask & TIOCM_RTS) ? HIGH : LOW);
-		if (set_rts(serial->dev, usb_sndctrlpipe(serial->dev, 0),urb_value) < 0){
-			err("Error from RTS set urb (TIOCMSET)");
-		}	
-		break;
-					
-	case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
-		dbg("%s TIOCMBIS", __FUNCTION__);
- 	        if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-  	        if (mask & TIOCM_DTR){
-			if ((ret = set_dtr(serial->dev, 
-					   usb_sndctrlpipe(serial->dev, 0),
-					   HIGH)) < 0) {
-				err("Urb to set DTR failed");
-				return(ret);
-			}
-		}
-		if (mask & TIOCM_RTS) {
-			if ((ret = set_rts(serial->dev, 
-					   usb_sndctrlpipe(serial->dev, 0),
-					   HIGH)) < 0){
-				err("Urb to set RTS failed");
-				return(ret);
-			}
-		}
-					break;
+static int ftdi_sio_tiocmset (struct usb_serial_port *port, struct file *file,
+			      unsigned int set, unsigned int clear)
+{
+	struct usb_serial *serial = port->serial;
+	int ret = 0;
+	
+	dbg("%s", __FUNCTION__);
 
-	case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
-		dbg("%s TIOCMBIC", __FUNCTION__);
- 	        if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-  	        if (mask & TIOCM_DTR){
-			if ((ret = set_dtr(serial->dev, 
-					   usb_sndctrlpipe(serial->dev, 0),
-					   LOW)) < 0){
-				err("Urb to unset DTR failed");
-				return(ret);
-			}
-		}	
-		if (mask & TIOCM_RTS) {
-			if ((ret = set_rts(serial->dev, 
-					   usb_sndctrlpipe(serial->dev, 0),
-					   LOW)) < 0){
-				err("Urb to unset RTS failed");
-				return(ret);
-			}
+	if (set & TIOCM_RTS)
+		if ((ret = set_rts(serial->dev, 
+				   usb_sndctrlpipe(serial->dev, 0),
+				   HIGH)) < 0) {
+			err("Urb to set RTS failed");
+			goto exit;
+		}
+
+	if (set & TIOCM_DTR)
+		if ((ret = set_dtr(serial->dev, 
+				   usb_sndctrlpipe(serial->dev, 0),
+				   HIGH)) < 0) {
+			err("Urb to set DTR failed");
+			goto exit;
+		}
+
+	if (clear & TIOCM_RTS)
+		if ((ret = set_rts(serial->dev, 
+				   usb_sndctrlpipe(serial->dev, 0),
+				   LOW)) < 0) {
+			err("Urb to unset RTS failed");
+			goto exit;
+		}
+
+	if (clear & TIOCM_DTR)
+		if ((ret = set_dtr(serial->dev, 
+				   usb_sndctrlpipe(serial->dev, 0),
+				   LOW)) < 0) {
+			err("Urb to unset DTR failed");
+			goto exit;
 		}
-		break;
 
-		/*
-		 * I had originally implemented TCSET{A,S}{,F,W} and
-		 * TCGET{A,S} here separately, however when testing I
-		 * found that the higher layers actually do the termios
-		 * conversions themselves and pass the call onto
-		 * ftdi_sio_set_termios. 
-		 *
-		 */
+exit:
+	return ret;
+}
 
+static int ftdi_sio_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+{
+	dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
+
+	switch (cmd) {
 	default:
 	  /* This is not an error - turns out the higher layers will do 
-	   *  some ioctls itself (see comment above)
+	   *  some ioctls itself
  	   */
 		dbg("%s arg not supported - it was 0x%04x", __FUNCTION__,cmd);
 		return(-ENOIOCTLCMD);

diff -Nru a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
@@ -455,6 +455,8 @@
 static void edge_set_termios		(struct usb_serial_port *port, struct termios *old_termios);
 static int  edge_ioctl			(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg);
 static void edge_break			(struct usb_serial_port *port, int break_state);
+static int  edge_tiocmget		(struct usb_serial_port *port, struct file *file);
+static int  edge_tiocmset		(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
 static int  edge_startup		(struct usb_serial *serial);
 static void edge_shutdown		(struct usb_serial *serial);
 

@@ -1762,42 +1764,27 @@
 	return -ENOIOCTLCMD;
 }
 
-static int set_modem_info(struct edgeport_port *edge_port, unsigned int cmd, unsigned int *value)
+static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear)
 {
-	unsigned int mcr = edge_port->shadowMCR;
-	unsigned int arg;
-
-	if (copy_from_user(&arg, value, sizeof(int)))
-		return -EFAULT;
-
-	switch (cmd) {
-		case TIOCMBIS:
-			if (arg & TIOCM_RTS)
-				mcr |= MCR_RTS;
-			if (arg & TIOCM_DTR)
-				mcr |= MCR_RTS;
-			if (arg & TIOCM_LOOP)
-				mcr |= MCR_LOOPBACK;
-			break;
+        struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	unsigned int mcr;
 
-		case TIOCMBIC:
-			if (arg & TIOCM_RTS)
-				mcr &= ~MCR_RTS;
-			if (arg & TIOCM_DTR)
-				mcr &= ~MCR_RTS;
-			if (arg & TIOCM_LOOP)
-				mcr &= ~MCR_LOOPBACK;
-			break;
+	dbg("%s - port %d", __FUNCTION__, port->number);
 
-		case TIOCMSET:
-			/* turn off the RTS and DTR and LOOPBACK 
-			 * and then only turn on what was asked to */
-			mcr &=  ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK);
-			mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0);
-			mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0);
-			mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0);
-			break;
-	}
+	mcr = edge_port->shadowMCR;
+	if (set & TIOCM_RTS)
+		mcr |= MCR_RTS;
+	if (set & TIOCM_DTR)
+		mcr |= MCR_DTR;
+	if (set & TIOCM_LOOP)
+		mcr |= MCR_LOOPBACK;
+
+	if (clear & TIOCM_RTS)
+		mcr &= ~MCR_RTS;
+	if (clear & TIOCM_DTR)
+		mcr &= ~MCR_DTR;
+	if (clear & TIOCM_LOOP)
+		mcr &= ~MCR_LOOPBACK;
 
 	edge_port->shadowMCR = mcr;
 

@@ -1806,12 +1793,17 @@
 	return 0;
 }
 
-static int get_modem_info(struct edgeport_port *edge_port, unsigned int *value)
+static int edge_tiocmget(struct usb_serial_port *port, struct file *file)
 {
+        struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned int result = 0;
-	unsigned int msr = edge_port->shadowMSR;
-	unsigned int mcr = edge_port->shadowMCR;
+	unsigned int msr;
+	unsigned int mcr;
+
+	dbg("%s - port %d", __FUNCTION__, port->number);
 
+	msr = edge_port->shadowMSR;
+	mcr = edge_port->shadowMCR;
 	result = ((mcr & MCR_DTR)	? TIOCM_DTR: 0)	  /* 0x002 */
 		  | ((mcr & MCR_RTS)	? TIOCM_RTS: 0)   /* 0x004 */
 		  | ((msr & MSR_CTS)	? TIOCM_CTS: 0)   /* 0x020 */

@@ -1822,13 +1814,9 @@
 
 	dbg("%s -- %x", __FUNCTION__, result);
 
-	if (copy_to_user(value, &result, sizeof(int)))
-		return -EFAULT;
-	return 0;
+	return result;
 }
 
-
-
 static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct * retinfo)
 {
 	struct serial_struct tmp;

@@ -1884,16 +1872,6 @@
 			dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__,  port->number);
 			return get_lsr_info(edge_port, (unsigned int *) arg);
 			return 0;
-
-		case TIOCMBIS:
-		case TIOCMBIC:
-		case TIOCMSET:
-			dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__,  port->number);
-			return set_modem_info(edge_port, cmd, (unsigned int *) arg);
-
-		case TIOCMGET:  
-			dbg("%s (%d) TIOCMGET", __FUNCTION__,  port->number);
-			return get_modem_info(edge_port, (unsigned int *) arg);
 
 		case TIOCGSERIAL:
 			dbg("%s (%d) TIOCGSERIAL", __FUNCTION__,  port->number);

diff -Nru a/drivers/usb/serial/io_tables.h b/drivers/usb/serial/io_tables.h
@@ -114,6 +114,8 @@
 	.shutdown		= edge_shutdown,
 	.ioctl			= edge_ioctl,
 	.set_termios		= edge_set_termios,
+	.tiocmget		= edge_tiocmget,
+	.tiocmset		= edge_tiocmset,
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,

@@ -137,6 +139,8 @@
 	.shutdown		= edge_shutdown,
 	.ioctl			= edge_ioctl,
 	.set_termios		= edge_set_termios,
+	.tiocmget		= edge_tiocmget,
+	.tiocmset		= edge_tiocmset,
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,

@@ -160,6 +164,8 @@
 	.shutdown		= edge_shutdown,
 	.ioctl			= edge_ioctl,
 	.set_termios		= edge_set_termios,
+	.tiocmget		= edge_tiocmget,
+	.tiocmset		= edge_tiocmset,
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,

@@ -183,6 +189,8 @@
 	.shutdown		= edge_shutdown,
 	.ioctl			= edge_ioctl,
 	.set_termios		= edge_set_termios,
+	.tiocmget		= edge_tiocmget,
+	.tiocmset		= edge_tiocmset,
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,

124 lines not on this page · raw message

81 lines not on this page · raw message

diff -Nru a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h
@@ -63,6 +63,11 @@
 					 struct termios *old);
 static void keyspan_break_ctl		(struct usb_serial_port *port,
 					 int break_state);
+static int  keyspan_tiocmget		(struct usb_serial_port *port,
+					 struct file *file);
+static int  keyspan_tiocmset		(struct usb_serial_port *port,
+					 struct file *file, unsigned int set,
+					 unsigned int clear);
 static int  keyspan_fake_startup	(struct usb_serial *serial);
 
 static int  keyspan_usa19_calc_baud	(u32 baud_rate, u32 baudclk, 

@@ -551,6 +556,8 @@
 	.ioctl			= keyspan_ioctl,
 	.set_termios		= keyspan_set_termios,
 	.break_ctl		= keyspan_break_ctl,
+	.tiocmget		= keyspan_tiocmget,
+	.tiocmset		= keyspan_tiocmset,
 	.attach			= keyspan_startup,
 	.shutdown		= keyspan_shutdown,
 };

@@ -574,6 +581,8 @@
 	.ioctl			= keyspan_ioctl,
 	.set_termios		= keyspan_set_termios,
 	.break_ctl		= keyspan_break_ctl,
+	.tiocmget		= keyspan_tiocmget,
+	.tiocmset		= keyspan_tiocmset,
 	.attach			= keyspan_startup,
 	.shutdown		= keyspan_shutdown,
 };

@@ -597,6 +606,8 @@
 	.ioctl			= keyspan_ioctl,
 	.set_termios		= keyspan_set_termios,
 	.break_ctl		= keyspan_break_ctl,
+	.tiocmget		= keyspan_tiocmget,
+	.tiocmset		= keyspan_tiocmset,
 	.attach			= keyspan_startup,
 	.shutdown		= keyspan_shutdown,
 };

112 lines not on this page · raw message

diff -Nru a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
@@ -105,6 +105,11 @@
 static void klsi_105_break_ctl	         (struct usb_serial_port *port,
 					  int break_state );
  */
+static int  klsi_105_tiocmget	         (struct usb_serial_port *port,
+					  struct file *file);
+static int  klsi_105_tiocmset	         (struct usb_serial_port *port,
+					  struct file *file, unsigned int set,
+					  unsigned int clear);
 
 /*
  * All of the device info needed for the KLSI converters.

@@ -143,6 +148,8 @@
 	.ioctl =	     klsi_105_ioctl,
 	.set_termios =	     klsi_105_set_termios,
 	/*.break_ctl =	     klsi_105_break_ctl,*/
+	.tiocmget =          klsi_105_tiocmget,
+	.tiocmset =          klsi_105_tiocmset,
 	.attach =	     klsi_105_startup,
 	.shutdown =	     klsi_105_shutdown,
 	.throttle =	     klsi_105_throttle,

@@ -879,68 +886,67 @@
 } /* mct_u232_break_ctl */
 #endif
 
-static int klsi_105_ioctl (struct usb_serial_port *port, struct file * file,
-			   unsigned int cmd, unsigned long arg)
+static int klsi_105_tiocmget (struct usb_serial_port *port, struct file *file)
 {
 	struct usb_serial *serial = port->serial;
 	struct klsi_105_private *priv = usb_get_serial_port_data(port);
-	int mask;
 	unsigned long flags;
+	int rc;
+	unsigned long line_state;
+	dbg("%s - request, just guessing", __FUNCTION__);
+
+	rc = klsi_105_get_line_state(serial, &line_state);
+	if (rc < 0) {
+		err("Reading line control failed (error = %d)", rc);
+		/* better return value? EAGAIN? */
+		return rc;
+	}
+
+	spin_lock_irqsave (&priv->lock, flags);
+	priv->line_state = line_state;
+	spin_unlock_irqrestore (&priv->lock, flags);
+	dbg("%s - read line state 0x%lx", __FUNCTION__, line_state);
+	return (int)line_state;
+}
+
+static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file,
+			      unsigned int set, unsigned int clear)
+{
+	int retval = -EINVAL;
+	
+	dbg("%s", __FUNCTION__);
+
+/* if this ever gets implemented, it should be done something like this:
+	struct usb_serial *serial = port->serial;
+	struct klsi_105_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	int control;
+
+	spin_lock_irqsave (&priv->lock, flags);
+	if (set & TIOCM_RTS)
+		priv->control_state |= TIOCM_RTS;
+	if (set & TIOCM_DTR)
+		priv->control_state |= TIOCM_DTR;
+	if (clear & TIOCM_RTS)
+		priv->control_state &= ~TIOCM_RTS;
+	if (clear & TIOCM_DTR)
+		priv->control_state &= ~TIOCM_DTR;
+	control = priv->control_state;
+	spin_unlock_irqrestore (&priv->lock, flags);
+	retval = mct_u232_set_modem_ctrl(serial, control);
+*/
+	return retval;
+}
+					
+static int klsi_105_ioctl (struct usb_serial_port *port, struct file * file,
+			   unsigned int cmd, unsigned long arg)
+{
+	struct klsi_105_private *priv = usb_get_serial_port_data(port);
 	
 	dbg("%scmd=0x%x", __FUNCTION__, cmd);
 
 	/* Based on code from acm.c and others */
 	switch (cmd) {
-	case TIOCMGET: {
-		int rc;
-		unsigned long line_state;
-		dbg("%s - TIOCMGET request, just guessing", __FUNCTION__);
-
-		rc = klsi_105_get_line_state(serial, &line_state);
-		if (rc < 0) {
-			err("Reading line control failed (error = %d)", rc);
-			/* better return value? EAGAIN? */
-			return -ENOIOCTLCMD;
-		}
-		spin_lock_irqsave (&priv->lock, flags);
-		priv->line_state = line_state;
-		spin_unlock_irqrestore (&priv->lock, flags);
-		dbg("%s - read line state 0x%lx", __FUNCTION__, line_state);
-		return put_user(line_state, (unsigned long *) arg); 
-	       };
-
-	case TIOCMSET: /* Turns on and off the lines as specified by the mask */
-	case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
-	case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
-		if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-
-		if ((cmd == TIOCMSET) || (mask & TIOCM_RTS)) {
-			/* RTS needs set */
-			if( ((cmd == TIOCMSET) && (mask & TIOCM_RTS)) ||
-			    (cmd == TIOCMBIS) )
-				dbg("%s - set RTS not handled", __FUNCTION__);
-				/* priv->control_state |=  TIOCM_RTS; */
-			else
-				dbg("%s - clear RTS not handled", __FUNCTION__);
-				/* priv->control_state &= ~TIOCM_RTS; */
-		}
-
-		if ((cmd == TIOCMSET) || (mask & TIOCM_DTR)) {
-			/* DTR needs set */
-			if( ((cmd == TIOCMSET) && (mask & TIOCM_DTR)) ||
-			    (cmd == TIOCMBIS) )
-				dbg("%s - set DTR not handled", __FUNCTION__);
-			/*	priv->control_state |=  TIOCM_DTR; */
-			else
-				dbg("%s - clear DTR not handled", __FUNCTION__);
-				/* priv->control_state &= ~TIOCM_DTR; */
-		}
-		/*
-		mct_u232_set_modem_ctrl(serial, priv->control_state);
-		*/
-		break;
-					
 	case TIOCMIWAIT:
 		/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
 		/* TODO */

diff -Nru a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
@@ -81,6 +81,9 @@
 static int  kobil_write_room(struct usb_serial_port *port);
 static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
 			unsigned int cmd, unsigned long arg);
+static int  kobil_tiocmget(struct usb_serial_port *port, struct file *file);
+static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
+			   unsigned int set, unsigned int clear);
 static void kobil_read_int_callback( struct urb *urb, struct pt_regs *regs );
 static void kobil_write_callback( struct urb *purb, struct pt_regs *regs );
 

@@ -106,6 +109,8 @@
 	.attach =		kobil_startup,
 	.shutdown =		kobil_shutdown,
 	.ioctl =		kobil_ioctl,
+	.tiocmget =		kobil_tiocmget,
+	.tiocmset =		kobil_tiocmset,
 	.open =			kobil_open,
 	.close =		kobil_close,
 	.write =		kobil_write,

@@ -490,11 +495,120 @@
 }
 
 
+static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
+{
+	struct kobil_private * priv;
+	int result;
+	unsigned char *transfer_buffer;
+	int transfer_buffer_length = 8;
+
+	priv = usb_get_serial_port_data(port);
+	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) {
+		// This device doesn't support ioctl calls
+		return -EINVAL;
+	}
+
+	// allocate memory for transfer buffer
+	transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
+	if (!transfer_buffer) {
+		return -ENOMEM;
+	}
+	memset(transfer_buffer, 0, transfer_buffer_length);
+
+	result = usb_control_msg( port->serial->dev, 
+				  usb_rcvctrlpipe(port->serial->dev, 0 ), 
+				  SUSBCRequest_GetStatusLineState,
+				  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
+				  0,
+				  0,
+				  transfer_buffer,
+				  transfer_buffer_length,
+				  KOBIL_TIMEOUT);
+
+	dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 
+	    __FUNCTION__, port->number, result, transfer_buffer[0]);
+
+	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
+		priv->line_state |= TIOCM_DSR;
+	} else {
+		priv->line_state &= ~TIOCM_DSR; 
+	}
+
+	kfree(transfer_buffer);
+	return priv->line_state;
+}
+
+static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
+			   unsigned int set, unsigned int clear)
+{
+	struct kobil_private * priv;
+	int result;
+	int dtr = 0;
+	int rts = 0;
+	unsigned char *transfer_buffer;
+	int transfer_buffer_length = 8;
+
+	priv = usb_get_serial_port_data(port);
+	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) {
+		// This device doesn't support ioctl calls
+		return -EINVAL;
+	}
+
+	// allocate memory for transfer buffer
+	transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
+	if (! transfer_buffer) {
+		return -ENOMEM;
+	}
+	memset(transfer_buffer, 0, transfer_buffer_length);
+
+	if (set & TIOCM_RTS)
+		rts = 1;
+	if (set & TIOCM_DTR)
+		dtr = 1;
+	if (clear & TIOCM_RTS)
+		rts = 0;
+	if (clear & TIOCM_DTR)
+		dtr = 0;
+
+	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
+		if (dtr != 0)
+			dbg("%s - port %d Setting DTR", __FUNCTION__, port->number);
+		else
+			dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number);
+		result = usb_control_msg( port->serial->dev, 
+					  usb_rcvctrlpipe(port->serial->dev, 0 ), 
+					  SUSBCRequest_SetStatusLinesOrQueues,
+					  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
+					  ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
+					  0,
+					  transfer_buffer,
+					  0,
+					  KOBIL_TIMEOUT);
+	} else {
+		if (rts != 0)
+			dbg("%s - port %d Setting RTS", __FUNCTION__, port->number);
+		else
+			dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number);
+		result = usb_control_msg( port->serial->dev, 
+					  usb_rcvctrlpipe(port->serial->dev, 0 ), 
+					  SUSBCRequest_SetStatusLinesOrQueues,
+					  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
+					  ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
+					  0,
+					  transfer_buffer,
+					  0,
+					  KOBIL_TIMEOUT);
+	}
+	dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result);
+	kfree(transfer_buffer);
+	return (result < 0) ? result : 0;
+}
+
+
 static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
 	struct kobil_private * priv;
-	int mask;
 	int result;
 	unsigned short urb_val = 0;
 	unsigned char *transfer_buffer;

@@ -605,90 +719,8 @@
 		kfree(transfer_buffer);
 		return ((result < 0) ? -EFAULT : 0);
 
-	case TIOCMGET: // 0x5415
-		// allocate memory for transfer buffer
-		transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
-		if (! transfer_buffer) {
-			return -ENOBUFS;
-		} else {
-			memset(transfer_buffer, 0, transfer_buffer_length);
-		}
-
-		result = usb_control_msg( port->serial->dev, 
-					  usb_rcvctrlpipe(port->serial->dev, 0 ), 
-					  SUSBCRequest_GetStatusLineState,
-					  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
-					  0,
-					  0,
-					  transfer_buffer,
-					  transfer_buffer_length,
-					  KOBIL_TIMEOUT
-			);
-
-		dbg("%s - port %d Send get_status_line_state (TIOCMGET) URB returns: %i. Statusline: %02x", 
-		    __FUNCTION__, port->number, result, transfer_buffer[0]);
-
-		if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
-			priv->line_state |= TIOCM_DSR;
-		} else {
-			priv->line_state &= ~TIOCM_DSR; 
-		}
-
-		kfree(transfer_buffer);
-		return put_user(priv->line_state, (unsigned long *) arg);
-
-	case TIOCMSET: // 0x5418
-		if (get_user(mask, (unsigned long *) arg)){
-			return -EFAULT;
-		}
-		// allocate memory for transfer buffer
-		transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
-		if (! transfer_buffer) {
-			return -ENOBUFS;
-		} else {
-			memset(transfer_buffer, 0, transfer_buffer_length);
-		}
-
-		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
-			if ((mask & TIOCM_DTR) != 0){
-				dbg("%s - port %d Setting DTR", __FUNCTION__, port->number);
-			} else {
-				dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number);
-			} 
-			result = usb_control_msg( port->serial->dev, 
-						  usb_rcvctrlpipe(port->serial->dev, 0 ), 
-						  SUSBCRequest_SetStatusLinesOrQueues,
-						  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
-						  ( ((mask & TIOCM_DTR) != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
-						  0,
-						  transfer_buffer,
-						  0,
-						  KOBIL_TIMEOUT
-				);
-			
-		} else {
-			if ((mask & TIOCM_RTS) != 0){
-				dbg("%s - port %d Setting RTS", __FUNCTION__, port->number);
-			} else {
-				dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number);
-			}
-			result = usb_control_msg( port->serial->dev, 
-						  usb_rcvctrlpipe(port->serial->dev, 0 ), 
-						  SUSBCRequest_SetStatusLinesOrQueues,
-						  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
-						  (((mask & TIOCM_RTS) != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
-						  0,
-						  transfer_buffer,
-						  0,
-						  KOBIL_TIMEOUT
-				);
-		}
-		dbg("%s - port %d Send set_status_line (TIOCMSET) URB returns: %i", __FUNCTION__, port->number, result);
-
-		kfree(transfer_buffer);
-		return ((result < 0) ? -EFAULT : 0);
 	}
-	return 0;
+	return -ENOIOCTLCMD;
 }
 
 

diff -Nru a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
@@ -125,7 +125,11 @@
 					  unsigned long arg);
 static void mct_u232_break_ctl	         (struct usb_serial_port *port,
 					  int break_state );
-
+static int  mct_u232_tiocmget		 (struct usb_serial_port *port,
+					  struct file *file);
+static int  mct_u232_tiocmset		 (struct usb_serial_port *port,
+					  struct file *file, unsigned int set,
+					  unsigned int clear);
 /*
  * All of the device info needed for the MCT USB-RS232 converter.
  */

@@ -165,6 +169,8 @@
 	.ioctl =	     mct_u232_ioctl,
 	.set_termios =	     mct_u232_set_termios,
 	.break_ctl =	     mct_u232_break_ctl,
+	.tiocmget =	     mct_u232_tiocmget,
+	.tiocmset =	     mct_u232_tiocmset,
 	.attach =	     mct_u232_startup,
 	.shutdown =	     mct_u232_shutdown,
 };

@@ -773,57 +779,55 @@
 } /* mct_u232_break_ctl */
 
 
-static int mct_u232_ioctl (struct usb_serial_port *port, struct file * file,
-			   unsigned int cmd, unsigned long arg)
+static int mct_u232_tiocmget (struct usb_serial_port *port, struct file *file)
+{
+	struct mct_u232_private *priv = usb_get_serial_port_data(port);
+	unsigned long control_state;
+	unsigned long flags;
+	
+	dbg("%s", __FUNCTION__);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	control_state = priv->control_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return control_state;
+}
+
+static int mct_u232_tiocmset (struct usb_serial_port *port, struct file *file,
+			      unsigned int set, unsigned int clear)
 {
 	struct usb_serial *serial = port->serial;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);
-	int mask;
 	unsigned long control_state;
 	unsigned long flags;
 	
-	dbg("%scmd=0x%x", __FUNCTION__, cmd);
+	dbg("%s", __FUNCTION__);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	control_state = priv->control_state;
+
+	if (set & TIOCM_RTS)
+		control_state |= TIOCM_RTS;
+	if (set & TIOCM_DTR)
+		control_state |= TIOCM_DTR;
+	if (clear & TIOCM_RTS)
+		control_state &= ~TIOCM_RTS;
+	if (clear & TIOCM_DTR)
+		control_state &= ~TIOCM_DTR;
+
+	priv->control_state = control_state;
 	spin_unlock_irqrestore(&priv->lock, flags);
+	return mct_u232_set_modem_ctrl(serial, control_state);
+}
+
+static int mct_u232_ioctl (struct usb_serial_port *port, struct file * file,
+			   unsigned int cmd, unsigned long arg)
+{
+	dbg("%scmd=0x%x", __FUNCTION__, cmd);
 
 	/* Based on code from acm.c and others */
 	switch (cmd) {
-	case TIOCMGET:
-		return put_user(control_state, (unsigned long *) arg);
-		break;
-
-	case TIOCMSET: /* Turns on and off the lines as specified by the mask */
-	case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
-	case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
-		if (get_user(mask, (unsigned long *) arg))
-			return -EFAULT;
-
-		if ((cmd == TIOCMSET) || (mask & TIOCM_RTS)) {
-			/* RTS needs set */
-			if( ((cmd == TIOCMSET) && (mask & TIOCM_RTS)) ||
-			    (cmd == TIOCMBIS) )
-				control_state |=  TIOCM_RTS;
-			else
-				control_state &= ~TIOCM_RTS;
-		}
-
-		if ((cmd == TIOCMSET) || (mask & TIOCM_DTR)) {
-			/* DTR needs set */
-			if( ((cmd == TIOCMSET) && (mask & TIOCM_DTR)) ||
-			    (cmd == TIOCMBIS) )
-				control_state |=  TIOCM_DTR;
-			else
-				control_state &= ~TIOCM_DTR;
-		}
-		mct_u232_set_modem_ctrl(serial, control_state);
-
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->control_state = control_state;
-		spin_unlock_irqrestore(&priv->lock, flags);
-		break;
-					
 	case TIOCMIWAIT:
 		/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
 		/* TODO */

diff -Nru a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
@@ -124,6 +124,9 @@
 static int pl2303_write (struct usb_serial_port *port, int from_user,
 			 const unsigned char *buf, int count);
 static void pl2303_break_ctl(struct usb_serial_port *port,int break_state);
+static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file);
+static int pl2303_tiocmset (struct usb_serial_port *port, struct file *file,
+			    unsigned int set, unsigned int clear);
 static int pl2303_startup (struct usb_serial *serial);
 static void pl2303_shutdown (struct usb_serial *serial);
 

@@ -143,6 +146,8 @@
 	.ioctl =		pl2303_ioctl,
 	.break_ctl =		pl2303_break_ctl,
 	.set_termios =		pl2303_set_termios,
+	.tiocmget =		pl2303_tiocmget,
+	.tiocmset =		pl2303_tiocmset,
 	.read_bulk_callback =	pl2303_read_bulk_callback,
 	.read_int_callback =	pl2303_read_int_callback,
 	.write_bulk_callback =	pl2303_write_bulk_callback,

@@ -490,51 +495,35 @@
 
 }
 
-static int set_modem_info (struct usb_serial_port *port, unsigned int cmd, unsigned int *value)
+static int pl2303_tiocmset (struct usb_serial_port *port, struct file *file,
+			    unsigned int set, unsigned int clear)
 {
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
-	unsigned int arg;
 	u8 control;
 
-	if (copy_from_user(&arg, value, sizeof(int)))
-		return -EFAULT;
-
 	spin_lock (&priv->lock);
-	switch (cmd) {
-		case TIOCMBIS:
-			if (arg & TIOCM_RTS)
-				priv->line_control |= CONTROL_RTS;
-			if (arg & TIOCM_DTR)
-				priv->line_control |= CONTROL_DTR;
-			break;
-
-		case TIOCMBIC:
-			if (arg & TIOCM_RTS)
-				priv->line_control &= ~CONTROL_RTS;
-			if (arg & TIOCM_DTR)
-				priv->line_control &= ~CONTROL_DTR;
-			break;
-
-		case TIOCMSET:
-			/* turn off RTS and DTR and then only turn
-			   on what was asked to */
-			priv->line_control &= ~(CONTROL_RTS | CONTROL_DTR);
-			priv->line_control |= ((arg & TIOCM_RTS) ? CONTROL_RTS : 0);
-			priv->line_control |= ((arg & TIOCM_DTR) ? CONTROL_DTR : 0);
-			break;
-	}
+	if (set & TIOCM_RTS)
+		priv->line_control |= CONTROL_RTS;
+	if (set & TIOCM_DTR)
+		priv->line_control |= CONTROL_DTR;
+	if (clear & TIOCM_RTS)
+		priv->line_control &= ~CONTROL_RTS;
+	if (clear & TIOCM_DTR)
+		priv->line_control &= ~CONTROL_DTR;
 	control = priv->line_control;
 	spin_unlock (&priv->lock);
 
 	return set_control_lines (port->serial->dev, control);
 }
 
-static int get_modem_info (struct usb_serial_port *port, unsigned int *value)
+static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file)
 {
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	unsigned int mcr;
 	unsigned int result;
 
+	dbg("%s (%d)", __FUNCTION__, port->number);
+
 	spin_lock (&priv->lock);
 	mcr = priv->line_control;
 	spin_unlock (&priv->lock);

@@ -544,9 +533,7 @@
 
 	dbg("%s - result = %x", __FUNCTION__, result);
 
-	if (copy_to_user(value, &result, sizeof(int)))
-		return -EFAULT;
-	return 0;
+	return result;
 }
 
 static int pl2303_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)

@@ -554,17 +541,6 @@
 	dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
 
 	switch (cmd) {
-		
-		case TIOCMGET:
-			dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number);
-			return get_modem_info (port, (unsigned int *)arg);
-
-		case TIOCMBIS:
-		case TIOCMBIC:
-		case TIOCMSET:
-			dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__,  port->number);
-			return set_modem_info(port, cmd, (unsigned int *) arg);
-
 		default:
 			dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
 			break;

@@ -572,7 +548,6 @@
 
 	return -ENOIOCTLCMD;
 }
-
 
 static void pl2303_break_ctl (struct usb_serial_port *port, int break_state)
 {

diff -Nru a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
@@ -146,6 +146,8 @@
 static int  whiteheat_write_room	(struct usb_serial_port *port);
 static int  whiteheat_ioctl		(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
 static void whiteheat_set_termios	(struct usb_serial_port *port, struct termios * old);
+static int  whiteheat_tiocmget		(struct usb_serial_port *port, struct file *file);
+static int  whiteheat_tiocmset		(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
 static void whiteheat_break_ctl		(struct usb_serial_port *port, int break_state);
 static int  whiteheat_chars_in_buffer	(struct usb_serial_port *port);
 static void whiteheat_throttle		(struct usb_serial_port *port);

@@ -184,6 +186,8 @@
 	.ioctl =		whiteheat_ioctl,
 	.set_termios =		whiteheat_set_termios,
 	.break_ctl =		whiteheat_break_ctl,
+	.tiocmget =		whiteheat_tiocmget,
+	.tiocmset =		whiteheat_tiocmset,
 	.chars_in_buffer =	whiteheat_chars_in_buffer,
 	.throttle =		whiteheat_throttle,
 	.unthrottle =		whiteheat_unthrottle,

@@ -767,73 +771,53 @@
 }
 
 
-static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file)
 {
 	struct whiteheat_private *info = usb_get_serial_port_data(port);
 	unsigned int modem_signals = 0;
-	struct serial_struct serstruct;
-
-	dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
 
-	switch (cmd) {
-		case TIOCMGET:
-			firm_get_dtr_rts(port);
-			if (info->mcr & UART_MCR_DTR)
-				modem_signals |= TIOCM_DTR;
-			if (info->mcr & UART_MCR_RTS)
-				modem_signals |= TIOCM_RTS;
-			
-			if (copy_to_user((unsigned int *)arg, &modem_signals, sizeof(unsigned int)))
-				return -EFAULT;
-
-			break;
-
-		case TIOCMSET:
-			if (copy_from_user(&modem_signals, (unsigned int *)arg, sizeof(unsigned int)))
-				return -EFAULT;
-
-			if (modem_signals & TIOCM_DTR)
-				info->mcr |= UART_MCR_DTR;
-			else
-				info->mcr &= ~UART_MCR_DTR;
-			if (modem_signals & TIOCM_RTS)
-				info->mcr |= UART_MCR_RTS;
-			else
-				info->mcr &= ~UART_MCR_RTS;
+	dbg("%s - port %d", __FUNCTION__, port->number);
 
-			firm_set_dtr(port, info->mcr & UART_MCR_DTR);
-			firm_set_rts(port, info->mcr & UART_MCR_RTS);
+	firm_get_dtr_rts(port);
+	if (info->mcr & UART_MCR_DTR)
+		modem_signals |= TIOCM_DTR;
+	if (info->mcr & UART_MCR_RTS)
+		modem_signals |= TIOCM_RTS;
 
-			break;
+	return modem_signals;
+}
 
-		case TIOCMBIS:
-			if (copy_from_user(&modem_signals, (unsigned int *)arg, sizeof(unsigned int)))
-				return -EFAULT;
 
-			if (modem_signals & TIOCM_DTR)
-				info->mcr |= UART_MCR_DTR;
-			if (modem_signals & TIOCM_RTS)
-				info->mcr |= UART_MCR_RTS;
+static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file,
+			       unsigned int set, unsigned int clear)
+{
+	struct whiteheat_private *info = usb_get_serial_port_data(port);
 
-			firm_set_dtr(port, info->mcr & UART_MCR_DTR);
-			firm_set_rts(port, info->mcr & UART_MCR_RTS);
+	dbg("%s - port %d", __FUNCTION__, port->number);
 
-			break;
+	if (set & TIOCM_RTS)
+		info->mcr |= UART_MCR_RTS;
+	if (set & TIOCM_DTR)
+		info->mcr |= UART_MCR_DTR;
+
+	if (clear & TIOCM_RTS)
+		info->mcr &= ~UART_MCR_RTS;
+	if (clear & TIOCM_DTR)
+		info->mcr &= ~UART_MCR_DTR;
 
-		case TIOCMBIC:
-			if (copy_from_user(&modem_signals, (unsigned int *)arg, sizeof(unsigned int)))
-				return -EFAULT;
+	firm_set_dtr(port, info->mcr & UART_MCR_DTR);
+	firm_set_rts(port, info->mcr & UART_MCR_RTS);
+	return 0;
+}
 
-			if (modem_signals & TIOCM_DTR)
-				info->mcr &= ~UART_MCR_DTR;
-			if (modem_signals & TIOCM_RTS)
-				info->mcr &= ~UART_MCR_RTS;
 
-			firm_set_dtr(port, info->mcr & UART_MCR_DTR);
-			firm_set_rts(port, info->mcr & UART_MCR_RTS);
+static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+{
+	struct serial_struct serstruct;
 
-			break;
+	dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
 
+	switch (cmd) {
 		case TIOCGSERIAL:
 			memset(&serstruct, 0, sizeof(serstruct));
 			serstruct.type = PORT_16654;

@@ -864,10 +848,10 @@
 			break;
 
 		default:
-			return -ENOIOCTLCMD;
+			break;
 	}
 
-	return 0;
+	return -ENOIOCTLCMD;
 }
 
 

diff -Nru a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
@@ -1,7 +1,8 @@
 /*
  * Prolific PL2303 USB to serial adaptor driver
  *
- * Copyright (C) 2001-2002 Greg Kroah-Hartman ([email protected])
+ * Copyright (C) 2001-2003 Greg Kroah-Hartman ([email protected])
+ * Copyright (C) 2003 IBM Corp.
  *
  * Original driver for 2.2.x by anonymous
  *

@@ -111,6 +112,16 @@
 #define VENDOR_READ_REQUEST_TYPE	0xc0
 #define VENDOR_READ_REQUEST		0x01
 
+#define UART_STATE			0x08
+#define UART_DCD			0x01
+#define UART_DSR			0x02
+#define UART_BREAK_ERROR		0x04
+#define UART_RING			0x08
+#define UART_FRAME_ERROR		0x10
+#define UART_PARITY_ERROR		0x20
+#define UART_OVERRUN_ERROR		0x40
+#define UART_CTS			0x80
+
 /* function prototypes for a PL2303 serial converter */
 static int pl2303_open (struct usb_serial_port *port, struct file *filp);
 static void pl2303_close (struct usb_serial_port *port, struct file *filp);

@@ -158,6 +169,7 @@
 struct pl2303_private {
 	spinlock_t lock;
 	u8 line_control;
+	u8 line_status;
 	u8 termios_initialized;
 };
 

@@ -227,6 +239,7 @@
 {
 	struct usb_serial *serial = port->serial;
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
 	unsigned int cflag;
 	unsigned char *buf;
 	int baud;

@@ -239,13 +252,13 @@
 		return;
 	}
 
-	spin_lock(&priv->lock);
+	spin_lock_irqsave(&priv->lock, flags);
 	if (!priv->termios_initialized) {
 		*(port->tty->termios) = tty_std_termios;
 		port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
 		priv->termios_initialized = 1;
 	}
-	spin_unlock(&priv->lock);
+	spin_unlock_irqrestore(&priv->lock, flags);
 
 	cflag = port->tty->termios->c_cflag;
 	/* check that they really want us to change something */

@@ -355,13 +368,13 @@
 	if (cflag && CBAUD) {
 		u8 control;
 
-		spin_lock (&priv->lock);
+		spin_lock_irqsave(&priv->lock, flags);
 		if ((cflag && CBAUD) == B0)
 			priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
 		else
 			priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
 		control = priv->line_control;
-		spin_unlock (&priv->lock);
+		spin_unlock_irqrestore(&priv->lock, flags);
 		set_control_lines (serial->dev, control);
 	}
 	

@@ -450,6 +463,7 @@
 {
 	struct usb_serial *serial;
 	struct pl2303_private *priv;
+	unsigned long flags;
 	unsigned int c_cflag;
 	int result;
 

@@ -486,9 +500,9 @@
 		if (c_cflag & HUPCL) {
 			/* drop DTR and RTS */
 			priv = usb_get_serial_port_data(port);
-			spin_lock (&priv->lock);
+			spin_lock_irqsave(&priv->lock, flags);
 			priv->line_control = 0;
-			spin_unlock (&priv->lock);
+			spin_unlock_irqrestore (&priv->lock, flags);
 			set_control_lines (port->serial->dev, 0);
 		}
 	}

@@ -499,9 +513,10 @@
 			    unsigned int set, unsigned int clear)
 {
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
 	u8 control;
 
-	spin_lock (&priv->lock);
+	spin_lock_irqsave (&priv->lock, flags);
 	if (set & TIOCM_RTS)
 		priv->line_control |= CONTROL_RTS;
 	if (set & TIOCM_DTR)

@@ -511,7 +526,7 @@
 	if (clear & TIOCM_DTR)
 		priv->line_control &= ~CONTROL_DTR;
 	control = priv->line_control;
-	spin_unlock (&priv->lock);
+	spin_unlock_irqrestore (&priv->lock, flags);
 
 	return set_control_lines (port->serial->dev, control);
 }

@@ -519,14 +534,15 @@
 static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file)
 {
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
 	unsigned int mcr;
 	unsigned int result;
 
 	dbg("%s (%d)", __FUNCTION__, port->number);
 
-	spin_lock (&priv->lock);
+	spin_lock_irqsave (&priv->lock, flags);
 	mcr = priv->line_control;
-	spin_unlock (&priv->lock);
+	spin_unlock_irqrestore (&priv->lock, flags);
 
 	result = ((mcr & CONTROL_DTR)		? TIOCM_DTR : 0)
 		  | ((mcr & CONTROL_RTS)	? TIOCM_RTS : 0);

@@ -588,9 +604,13 @@
 {
 	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 	struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
-	//unsigned char *data = urb->transfer_buffer;
+	struct pl2303_private *priv = usb_get_serial_port_data(port);
+	unsigned char *data = urb->transfer_buffer;
+	unsigned long flags;
 	int status;
 
+	dbg("%s (%d)", __FUNCTION__, port->number);
+
 	switch (urb->status) {
 	case 0:
 		/* success */

@@ -612,8 +632,14 @@
 
 	usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, urb->transfer_buffer);
 
-	//FIXME need to update state of terminal lines variable
+	if (urb->actual_length > UART_STATE)
+		goto exit;
 
+	/* Save off the uart status for others to look at */
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_status = data[UART_STATE];
+	spin_unlock_irqrestore(&priv->lock, flags);
+		
 exit:
 	status = usb_submit_urb (urb, GFP_ATOMIC);
 	if (status)

@@ -626,10 +652,14 @@
 {
 	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 	struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
+	unsigned long flags;
 	int i;
 	int result;
+	u8 status;
+	char tty_flag;
 
 	if (port_paranoia_check (port, __FUNCTION__))
 		return;

@@ -663,13 +693,34 @@
 
 	usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
 
+	/* get tty_flag from status */
+	tty_flag = TTY_NORMAL;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	status = priv->line_status;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* break takes precedence over parity, */
+	/* which takes precedence over framing errors */
+	if (status & UART_BREAK_ERROR )
+		tty_flag = TTY_BREAK;
+	else if (status & UART_PARITY_ERROR)
+		tty_flag = TTY_PARITY;
+	else if (status & UART_FRAME_ERROR)
+		tty_flag = TTY_FRAME;
+	dbg("%s - tty_flag = %d", __FUNCTION__, tty_flag);
+
 	tty = port->tty;
 	if (tty && urb->actual_length) {
+		/* overrun is special, not associated with a char */
+		if (status & UART_OVERRUN_ERROR)
+			tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+
 		for (i = 0; i < urb->actual_length; ++i) {
 			if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
 				tty_flip_buffer_push(tty);
 			}
-			tty_insert_flip_char (tty, data[i], 0);
+			tty_insert_flip_char (tty, data[i], tty_flag);
 		}
 		tty_flip_buffer_push (tty);
 	}

diff -Nru a/drivers/char/tty_io.c b/drivers/char/tty_io.c
@@ -1700,8 +1700,8 @@
 			break;
 		}
 
-		set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2;
-		clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2;
+		set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+		clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
 
 		retval = tty->driver->tiocmset(tty, file, set, clear);
 	}