On Sat, 6 Dec 2003, matthias geissert wrote:
> Hello,
>
> I applied the patch. Unfortunately, results are the same. The output of
> dmesg is attached.
All right. Here's another try, which might not be any better. See what
happens with the patch below instead.
> BTW what does CSW mean? Can the speed of the USB controller be reduced?
> I know that this question sounds quite strange, but if the external case
> has problems with the speed of the host controller this could make it
> work (It's probably just a stupid idea). Or is it usefull to check
> kernel 2.4.19 again? Maybe, we could see some difference in the output
> of dmesg.
Changing the speed of the host controller might solve your problem,
although the default settings are generally okay. Try this out first,
though, before doing anything else.
Alan Stern
--- 2.6/drivers/usb/storage/transport.c~ Fri Dec 5 13:30:53 2003
+++ 2.6/drivers/usb/storage/transport.c Sat Dec 6 17:03:20 2003
@@ -985,10 +985,17 @@
bcs, US_BULK_CS_WRAP_LEN, NULL);
/* did the attempt to read the CSW fail? */
- if (result == USB_STOR_XFER_STALLED) {
+ if (result == USB_STOR_XFER_STALLED || result == USB_STOR_XFER_SHORT) {
/* get the status again */
US_DEBUGP("Attempting to get CSW (2nd try)...\n");
+ result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
+ bcs, US_BULK_CS_WRAP_LEN, NULL);
+ }
+ if (result == USB_STOR_XFER_STALLED) {
+
+ /* get the status again */
+ US_DEBUGP("Attempting to get CSW (3rd try)...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
bcs, US_BULK_CS_WRAP_LEN, NULL);
}
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