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From: "Markus Rechberger" <mrechberger@gmail.com>
To: "Oliver Neukum" <oliver@neukum.org>
Cc: "Mark Lord" <lkml@rtr.ca>,
	linux-kernel@vger.kernel.org,
	linux-usb-devel@lists.sourceforge.net,
	"Laurent Pinchart" <laurentp@cse-semaphore.com>
Subject: Re: USB deadlock after resume
Date: Wed, 21 Nov 2007 16:25:08 +0100	[thread overview]
Message-ID: <d9def9db0711210725x3fe35fedlc67cf637bc9ad27f@mail.gmail.com> (raw)
In-Reply-To: <200711211615.14829.oliver@neukum.org>

On 11/21/07, Oliver Neukum <oliver@neukum.org> wrote:
> Am Mittwoch 21 November 2007 schrieb Markus Rechberger:
> > > Which URB is usb_kill_urb() called for?
> > >
> >
> > it's the usb_control_message which calls usb_kill_urb if I haven't got
> > it wrong. (if you're looking for some other information please let me
> > know)
> > Although, I got a bit further with it. The error seems to happen
> > earlier already.
> > If I load the driver, and do not access the device after suspending
> > all usb_control commands fail with -71 eproto.
>
> A timeout. You should add the RESET_RESUME quirk for your device.
> usb_reset_device() from resume() is not a good idea.
>

ok this is good to know, although I have to stick with kernel 2.6.21.3 here.
It's Laurent's driver best would be to check for the specific
kernelversion and do whatever is appropriate.

thanks,
Markus

  reply	other threads:[~2007-11-21 15:25 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-20 21:47 Markus Rechberger
2007-11-21  4:17 ` Mark Lord
2007-11-21  5:32   ` Markus Rechberger
2007-11-21 10:59     ` Markus Rechberger
2007-11-21 11:46       ` Oliver Neukum
2007-11-21 14:37         ` Markus Rechberger
2007-11-21 14:42           ` Markus Rechberger
2007-11-21 14:52             ` Markus Rechberger
2007-11-21 15:00               ` Felipe Balbi
2007-11-21 14:58             ` Felipe Balbi
2007-11-21 15:10               ` Oliver Neukum
2007-11-21 20:52                 ` [linux-usb-devel] " Laurent Pinchart
2007-11-21 21:55                   ` Alan Stern
2007-11-21 14:52           ` Felipe Balbi
2007-11-21 15:03             ` Oliver Neukum
2007-11-21 15:15           ` Oliver Neukum
2007-11-21 15:25             ` Markus Rechberger [this message]
2007-11-21 20:41               ` [linux-usb-devel] " Laurent Pinchart
2007-11-22 11:52                 ` Oliver Neukum
2007-11-21 16:31           ` Alan Stern
2007-11-21 17:14             ` Markus Rechberger
2007-11-21 18:02               ` Alan Stern
2007-11-21 20:45               ` Laurent Pinchart
2007-11-21 22:22                 ` Markus Rechberger

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