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From: Oliver Neukum <oliver@neukum.org>
To: Felipe Balbi <me@felipebalbi.com>
Cc: Markus Rechberger <mrechberger@gmail.com>,
	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 16:03:19 +0100	[thread overview]
Message-ID: <200711211603.20173.oliver@neukum.org> (raw)
In-Reply-To: <8eac96a88d4f5eea94927c0e64eaac36@felipebalbi.com>

Am Mittwoch 21 November 2007 schrieb Felipe Balbi:
> Hi,
> 
> On Wed, 21 Nov 2007 15:37:20 +0100, "Markus Rechberger"
> <mrechberger@gmail.com> wrote:

> > 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.
> 
> This device shouldn't be suspended. AFAIK it should have auto_suspend
> disabled
> by default.
> 
> Try adding this device to drivers/usb/core/quirks.c with
> USB_QUIRK_NO_AUTOSUSPEND flag set. Something like:

Unless the device sets a flag it won't be autosuspended. Nevertheless
it will and must be suspended as the whole system is supended.

	Regards
		Oliver

  reply	other threads:[~2007-11-21 15:03 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 [this message]
2007-11-21 15:15           ` Oliver Neukum
2007-11-21 15:25             ` Markus Rechberger
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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