linux-kernel - Re: usb_fill_bulk_urb() broken for USB1.1?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 26 Jun 2007 13:52:41 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Keith Chew <keith.chew@...il.com>
CC:	linux-kernel <linux-kernel@...r.kernel.org>,
	USB development list <linux-usb-devel@...ts.sourceforge.net>
Subject: Re: usb_fill_bulk_urb() broken for USB1.1?

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.
> 
> When we change to use usb_fill_int_urb(), it then works for USB1.1,
> but takes up to 15 seconds (usually less than 5 seconds) for the
> driver to initialise. Also, usb_fill_int_urb() does not work for
> USB2.0 (kernel panic).
> 
> Can anyone point us to the right direction on how to get
> usb_fill_bulk_urb() working on USB1.1? We need this as not all of the
> deployed machines have USB2.0 enabled.
> 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/