usbtouchscreen: support bigger iNexio touchscreens
Subsystems (2)
Bigger Nexio touchscreens not only send more data but also the header values are modified somehow. Fix the header somehow (it's a guesswork but it works at least on one 46" touchscreen with 2.00SMS firmware) and also increase rept_size.
Signed-off-by Ondrej Zary <[email protected]>
drivers/input/touchscreen/usbtouchscreen.c +6 -1
@@ -858,6 +858,11 @@if ((pkt[0 ] &0xe0 ) !=0xe0 )return 0 ; +if (be16_to_cpu (packet->data_len) >0xff ) + packet->data_len =cpu_to_be16 (be16_to_cpu (packet->data_len) -0x100 ); +if (be16_to_cpu (packet->x_len) >0xff ) + packet->x_len =cpu_to_be16 (be16_to_cpu (packet->x_len) -0x80 ); +/* send ACK */ ret =usb_submit_urb (priv->ack,GFP_ATOMIC );
@@ -1113,7 +1118,7 @@ #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO [DEVTYPE_NEXIO] = { - .rept_size = 128, + .rept_size = 1024, .irq_always = true, .read_data = nexio_read_data, .init = nexio_init,
Signature · 1 line
Ondrej Zary
[ adding some more relevant CCs ]
Quoted 33 lines · Ondrej Zary
Bigger Nexio touchscreens not only send more data but also the header values are modified somehow. Fix the header somehow (it's a guesswork but it works at least on one 46" touchscreen with 2.00SMS firmware) and also increase
rept_size.Signed-off-by Ondrej Zary <[email protected]>drivers/input/touchscreen/usbtouchscreen.c +6
-1@@ -858,6 +858,11 @@if ((pkt[0 ] &0xe0 ) !=0xe0 )return 0 ; +if (be16_to_cpu (packet->data_len) >0xff ) + packet->data_len =cpu_to_be16 (be16_to_cpu (packet->data_len) -0x100 ); +if (be16_to_cpu (packet->x_len) >0xff ) + packet->x_len =cpu_to_be16 (be16_to_cpu (packet->x_len) -0x80 ); +/* send ACK */ ret =usb_submit_urb (priv->ack,GFP_ATOMIC );@@ -1113,7 +1118,7 @@ #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO [DEVTYPE_NEXIO] = { - .rept_size = 128, + .rept_size = 1024, .irq_always = true, .read_data = nexio_read_data, .init = nexio_init,
Signature · 7 lines
Jiri Kosina SUSE Labs, Novell Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html