linux-kernel - Re: [PATCH] USB: Only enable autosuspend by default on certain device classes

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Message-ID: <20070803150600.GB19968@srcf.ucam.org>
Date:	Fri, 3 Aug 2007 16:06:00 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Jiri Kosina <jikos@...os.cz>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	David Brownell <david-b@...bell.net>,
	Rogan Dawes <lists@...es.za.net>,
	Oliver Neukum <oliver@...kum.org>, Greg KH <gregkh@...e.de>,
	linux-usb-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: Only enable autosuspend by   default on certain device classes

On Fri, Aug 03, 2007 at 04:43:16PM +0200, Jiri Kosina wrote:

> are you sure about windows suspending the HID devices in runtime? I have 
> never seen LEDs of USB keyboard connected to windows host to go off after 
> some time of not using it.

Ah, sorry - on reading more closely, HID devices will only be 
autosuspended if they're whitelisted.

> We have been playing with runtime autosuspend of HID devices, are 
> currently postponed the full support, as it turns out that many devices 
> don't support this feature properly (probably due to not being tested in 
> Windows).

This doesn't surprise me...
-- 
Matthew Garrett | mjg59@...f.ucam.org
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