On Tue, 24 Jul 2007 01:55:26 -0400, Pavel Roskin <[EMAIL PROTECTED]> wrote:

> The driver stopped working after I upgraded from Linux 2.6.22 to Linux
> 2.6.23-rc1.  No compile errors or warnings needed to be fixed.

> I was able to check that the data buffer remains unchanged even though
> the data size is not 0.  Actually, the return code is 0, which indicates
> that 0 bytes have been read.  But why?  And why is it not an error?

I looked at the changes in -rc1 and the only two vaguely suspicious areas
are the suspend and the ehci_hcd. So, I'm afraid someone has to bisect.

The URB_SHORT_NOT_OK flag is not default. I don't remember exactly why.

> I'll appreciate if some of the USB developers have a brief look at the
> driver.  Sure, I can debug deeper into usb_control_msg(), but most
> likely the driver is just doing something stupid.
> 
> The patch for the kernel:
> http://80211libre.org/at76/at76_usb.patch

I don't see anything suspicious in the patch.

-- Pete

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