From: Chuck Ebbert <cebbert@redhat.com>
To: Stefan Scheler <stefan@scheler.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Regression from 2.6.21 to 2.6.22 and above
Date: Thu, 11 Oct 2007 19:15:16 -0400 [thread overview]
Message-ID: <470EAE84.3010704@redhat.com> (raw)
In-Reply-To: <fekuk7$kpl$1@sea.gmane.org>
On 10/11/2007 06:41 AM, Stefan Scheler wrote:
> Hello,
>
> my Kobil KAAN Professional (USB variant) smartcard reader stopped
> working when upgrading from 2.6.21 to 2.6.22 (and 2.6.23). Not working
> means that the latest libct.so supplied from Kobil is segfaulting when
> trying to access the device. But as far as I can see the kobil_sct
> driver itself didn't change from 2.6.21 to 2.6.22. Any ideas what is
> going on here?
>
> Thanks in advance. I will provide additional information if needed.
>
Try turning off USB autosuspend by adding the kernel option
"usbcore.autosuspend=-1". Or if your USB is modular, add "autosuspend=-1"
to the module parameters.
next prev parent reply other threads:[~2007-10-11 23:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-11 10:41 Regression from 2.6.21 to 2.6.22 and above Stefan Scheler
2007-10-11 23:15 ` Chuck Ebbert [this message]
2007-10-12 7:13 ` Stefan Scheler
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