Re: Gembird usb card reader

On Monday 10 September 2007 17:50:04 Alan Stern wrote:

> Turn on CONFIG_USB_STORAGE_DEBUG and compare the debugging logs on your
> two computers.  Try to find where the differences occur.
>
> Alan Stern

I've attached the debug log from laptop (where the reader works).

The first difference I see is that on desktop pc (where it doesn't work with 
ehci) after first "Attempting to get CSW..." there is negative status code: 
"usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes
 usb-storage: Status code -32; transferred 0/13".
And then - "clearing endpoint halt for pipe 0xc0011780".
But "get CSW" thing succeeds on 2nd try.
This transfer doesn't fail on laptop...

----------------Fragment of debug log on non-working pc:
Aug 26 04:04:17 gw vmunix: usb-storage: Command MODE_SENSE (6 bytes)
Aug 26 04:04:17 gw vmunix: usb-storage:  1a 00 3f 00 c0 00
Aug 26 04:04:17 gw vmunix: usb-storage: Bulk Command S 0x43425355 T 0x6 L 192 
F 128 Trg 0 LUN 0 CL 6
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_bulk_transfer_buf: xfer 31 
bytes
Aug 26 04:04:17 gw vmunix: usb-storage: Status code 0; transferred 31/31
Aug 26 04:04:17 gw vmunix: usb-storage: -- transfer complete
Aug 26 04:04:17 gw vmunix: usb-storage: Bulk command transfer result=0
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_bulk_transfer_sglist: xfer 
192 bytes, 1 entries
Aug 26 04:04:17 gw vmunix: usb-storage: Status code -121; transferred 4/192
Aug 26 04:04:17 gw vmunix: usb-storage: -- short read transfer
Aug 26 04:04:17 gw vmunix: usb-storage: Bulk data transfer result 0x1
Aug 26 04:04:17 gw vmunix: usb-storage: Attempting to get CSW...
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_bulk_transfer_buf: xfer 13 
bytes
Aug 26 04:04:17 gw vmunix: usb-storage: Status code -32; transferred 0/13
Aug 26 04:04:17 gw vmunix: usb-storage: clearing endpoint halt for pipe 
0xc0011780
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_control_msg: rq=01 rqtype=02 
value=0000 index=82 len=0
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_clear_halt: result = 0
Aug 26 04:04:17 gw vmunix: usb-storage: Attempting to get CSW (2nd try)...
Aug 26 04:04:17 gw vmunix: usb-storage: usb_stor_bulk_transfer_buf: xfer 13 
bytes
Aug 26 04:04:17 gw vmunix: usb-storage: Status code 0; transferred 13/13
Aug 26 04:04:17 gw vmunix: usb-storage: -- transfer complete

---------------On laptop, everything's ok - reader works ok with ehci:

Command MODE_SENSE (6 bytes)
Sep 10 23:25:24 localhost kernel: usb-storage:  1a 00 3f 00 c0 00
Sep 10 23:25:24 localhost kernel: usb-storage: Bulk Command S 0x43425355 T 0x6 
L 192 F 128 Trg 0 LUN 0 CL 6
Sep 10 23:25:24 localhost kernel: usb-storage: usb_stor_bulk_transfer_buf: 
xfer 31 bytes
Sep 10 23:25:24 localhost kernel: usb-storage: Status code 0; transferred 
31/31
Sep 10 23:25:24 localhost kernel: usb-storage: -- transfer complete
Sep 10 23:25:24 localhost kernel: usb-storage: Bulk command transfer result=0
Sep 10 23:25:24 localhost kernel: usb-storage: usb_stor_bulk_transfer_sglist: 
xfer 192 bytes, 1 entries
Sep 10 23:25:24 localhost kernel: usb-storage: Status code -121; transferred 
4/192
Sep 10 23:25:24 localhost kernel: usb-storage: -- short read transfer
Sep 10 23:25:24 localhost kernel: usb-storage: Bulk data transfer result 0x1
Sep 10 23:25:24 localhost kernel: usb-storage: Attempting to get CSW...
Sep 10 23:25:24 localhost kernel: usb-storage: usb_stor_bulk_transfer_buf: 
xfer 13 bytes
Sep 10 23:25:24 localhost kernel: usb-storage: Command TEST_UNIT_READY (6 
bytes)
Sep 10 23:25:24 localhost kernel: usb-storage:  00 20 00 00 00 00
Sep 10 23:25:24 localhost kernel: usb-storage: Bulk Command S 0x43425355 T 
0x13 L 0 F 0 Trg 0 LUN 1 CL 6
Sep 10 23:25:24 localhost kernel: usb-storage: usb_stor_bulk_transfer_buf: 
xfer 31 bytes
Sep 10 23:25:24 localhost kernel: usb-storage: Status code 0; transferred 
31/31
Sep 10 23:25:24 localhost kernel: usb-storage: -- transfer complete

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