Re: usb_fill_bulk_urb() broken for USB1.1?

Pete Zaitcev <[email protected]>
Newsgroups gmane.linux.usb.devel,gmane.linux.kernel
Organization Red Hat, Inc.
Message-ID <[email protected]>
On Tue, 26 Jun 2007 13:52:41 -0400, Chuck Ebbert <[email protected]> wrote:
> On 06/26/2007 10:20 AM, Keith Chew wrote:

> [cc: linux-usb-devel]
> 
> > We have been using a Zydas based WIFI drivers under kernel 2.6.16.18
> > with great success. Recently, when we upgraded to 2.6.20.1 (also
> > tested on 2.6.21.5), we found that during initialisation, these calls
> > works with USB2.0 but stopped working on USB1.1:
> > 
> > usb_fill_bulk_urb();
> > usb_submit_urb();
> > 
> > The error code returned is -22 (-EINVAL). In 2.6.16.18, it works for
> > both USB2.0 and 1.1.

This looks like an attempt to submit a bulk URB to an interrupt endpoint,
with garbage interval or something of that nature.

I think it would be the best to talk to the driver author directly.

-- Pete

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