ums-realtek: Unneeded SubClass & Protocol entries (Fujitsu S760 laptop)

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Good afternoon,

The following message was emitted by my kernel:
usb 1-1.6: new high speed USB device number 5 using ehci_hcd ums-realtek 1-1.6:1.0: This device (0bda,0138,3882 S 06 P 50) has unneeded SubClass and Protocol entries in unusual_devs.h (kernel 2.6.39-rc5-00274-g609cfda)
Please send a copy of this message to <[email protected]> and
<[email protected]>
scsi6 : usb-storage 1-1.6:1.0

This is the built-in card reader on a Fujitsu S760 laptop. Full lsusb for the device in question:
Bus 001 Device 005: ID 0bda:0138 Realtek Semiconductor Corp. Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00

  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x0bda Realtek Semiconductor Corp.
  idProduct          0x0138
  bcdDevice           38.82
  iManufacturer           1 Generic
  iProduct                2 USB2.0-CRW
  iSerial                 3 20090516388200000
  bNumConfigurations      1

Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 CARD READER
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 5 Bulk-In, Bulk-Out, Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00

  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0

bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)

Could you CC me on any postings as I am not subscribed to the USB lists. If there is further information you require, I am happy to provide it.

Regards,
- --
Tony Vroon
UNIX systems administrator
London Internet Exchange Ltd, Trinity Court, Trinity Street, Peterborough, PE1 1DA
Registered in England number 3137929
E-Mail: [email protected]
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Thanks for reporting this. Does the patch below cause the message to go away?

Alan Stern

Index: usb-2.6/drivers/usb/storage/unusual_realtek.h
===================================================================
@@ -23,19 +23,19 @@
 #if defined(CONFIG_USB_STORAGE_REALTEK) || \
 		defined(CONFIG_USB_STORAGE_REALTEK_MODULE)
 
-UNUSUAL_DEV(0x0bda, 0x0159, 0x0000, 0x9999,
+UNUSUAL_DEV(0x0bda, 0x0138, 0x0000, 0x9999,
 		"Realtek",
 		"USB Card Reader",
-		USB_SC_SCSI, USB_PR_BULK, init_realtek_cr, 0),
+		USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
 
 UNUSUAL_DEV(0x0bda, 0x0158, 0x0000, 0x9999,
 		"Realtek",
 		"USB Card Reader",
-		USB_SC_SCSI, USB_PR_BULK, init_realtek_cr, 0),
+		USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
 
-UNUSUAL_DEV(0x0bda, 0x0138, 0x0000, 0x9999,
+UNUSUAL_DEV(0x0bda, 0x0159, 0x0000, 0x9999,
 		"Realtek",
 		"USB Card Reader",
-		USB_SC_SCSI, USB_PR_BULK, init_realtek_cr, 0),
+		USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
 
 #endif  /* defined(CONFIG_USB_STORAGE_REALTEK) || ... */

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- -ums-realtek 1-1.6:1.0: This device (0bda,0138,3882 S 06 P 50) has unneeded SubClass and Protocol entries in unusual_devs.h (kernel 2.6.39-rc5-00274-g609cfda)
- - Please send a copy of this message to <[email protected]>
and <[email protected]>

That is with your patch applied to 2.6.39-rc6-00041-g5895198. Many thanks.

Regards,
- --
Tony Vroon
UNIX systems administrator
London Internet Exchange Ltd, Trinity Court, Trinity Street, Peterborough, PE1 1DA
Registered in England number 3137929
E-Mail: [email protected]
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Sorry, I don't quite understand what you mean. Do those "- -" strings indicate that the message is not present when the patch is applied?

Alan Stern

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Indeed, I did a diff between the dmesg of the kernel I reported the problem on, and the dmesg of the newer RC6 with your patch applied.

Regards,
- --
Tony Vroon
UNIX systems administrator
London Internet Exchange Ltd, Trinity Court, Trinity Street, Peterborough, PE1 1DA
Registered in England number 3137929
E-Mail: [email protected]
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