Re: usb_fill_bulk_urb() broken for USB1.1?

Pete Zaitcev
2007-06-26T19:29:46Z

On Tue, 26 Jun 2007 13:52:41 -0400, Chuck Ebbert <cebbert@redhat.com> 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