From: Pete Zaitcev <zaitcev@redhat.com>
To: Chuck Ebbert <cebbert@redhat.com>
Cc: Keith Chew <keith.chew@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
USB development list <linux-usb-devel@lists.sourceforge.net>
Subject: Re: usb_fill_bulk_urb() broken for USB1.1?
Date: Tue, 26 Jun 2007 12:30:57 -0700 [thread overview]
Message-ID: <20070626123057.d659a62e.zaitcev@redhat.com> (raw)
In-Reply-To: <46815269.8060507@redhat.com>
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
next prev parent reply other threads:[~2007-06-26 19:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-26 14:20 usb_fill_bulk_urb() broken for USB1.1? Keith Chew
2007-06-26 17:52 ` Chuck Ebbert
2007-06-26 19:30 ` Pete Zaitcev [this message]
2007-06-27 6:27 ` [linux-usb-devel] " Oliver Neukum
2007-06-27 7:30 ` Keith Chew
2007-06-27 7:35 ` Oliver Neukum
2007-06-27 22:54 ` Keith Chew
2007-06-27 7:11 ` Greg KH
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