From: Oliver Neukum <oneukum@suse.de>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Jiri Slaby <jslaby@suse.cz>, Dmitry Torokhov <dtor@mail.ru>,
pingc@wacom.com, linux-pm <linux-pm@lists.linux-foundation.org>,
Linux kernel mailing list <linux-kernel@vger.kernel.org>,
linux-input@vger.kernel.org
Subject: Re: [linux-pm] wacom + runtime PM = AA deadlock
Date: Tue, 14 Sep 2010 10:13:19 +0200 [thread overview]
Message-ID: <201009141013.19704.oneukum@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1009131600230.1315-100000@iolanthe.rowland.org>
Am Montag, 13. September 2010, 22:02:16 schrieb Alan Stern:
> > > Is there any point in resuming the device during close() just in order
> > > to kill the interrupt URB? It seems counterproductive -- if the device
> > > had been suspended then there wouldn't be any interrupt URB to kill in
> > > the first place.
> >
> > Suppose the device does not support remote wakeup. It would never
> > be autosuspended while it is open, but simply resetting the flag
> > would never reach the PM layer.
>
> Whoops, that's right. I didn't see the assignment to
> needs_remote_wakeup.
Should I have used usb_autopm_get_interface_no_resume()?
Regards
Oliver
next prev parent reply other threads:[~2010-09-14 8:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-13 12:24 wacom + runtime PM = AA deadlock Jiri Slaby
2010-09-13 14:25 ` [linux-pm] " Alan Stern
2010-09-13 14:56 ` Oliver Neukum
2010-09-13 15:17 ` [linux-pm] " Alan Stern
2010-09-13 19:05 ` Oliver Neukum
2010-09-13 20:02 ` Alan Stern
2010-09-13 20:28 ` Dmitry Torokhov
2010-09-14 8:13 ` Oliver Neukum [this message]
2010-09-14 14:01 ` Alan Stern
2010-09-14 14:03 ` Oliver Neukum
2010-09-14 15:23 ` Alan Stern
2010-09-14 15:30 ` Oliver Neukum
2010-09-14 16:05 ` Alan Stern
2010-09-13 17:10 ` Dmitry Torokhov
2010-09-13 19:20 ` [linux-pm] " Oliver Neukum
2010-09-14 0:52 ` Dmitry Torokhov
2010-09-14 6:07 ` Oliver Neukum
2010-10-04 16:13 ` Dmitry Torokhov
2010-10-04 18:33 ` Oliver Neukum
2010-10-04 18:38 ` Dmitry Torokhov
2010-10-04 19:24 ` Oliver Neukum
2010-10-05 5:41 ` Dmitry Torokhov
2010-10-05 5:54 ` Oliver Neukum
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