linux-kernel - Re: [linux-usb-devel] [PATCH 1/3] UEAGLE : be suspend friendly

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Message-ID: <Pine.LNX.4.44L0.0610051221520.6596-100000@iolanthe.rowland.org>
Date:	Thu, 5 Oct 2006 12:22:54 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Duncan Sands <baldrick@...e.fr>
cc:	usbatm@...ts.infradead.org,
	<linux-usb-devel@...ts.sourceforge.net>, <greg@...ah.com>,
	Pavel Machek <pavel@....cz>, <linux-kernel@...r.kernel.org>,
	ueagle <ueagleatm-dev@....org>,
	matthieu castet <castet.matthieu@...e.fr>
Subject: Re: [linux-usb-devel] [PATCH 1/3] UEAGLE : be suspend friendly

On Thu, 5 Oct 2006, Duncan Sands wrote:

> > Plug/unplug should be easy enough to simulate from usb driver, no?
> 
> if a USB driver doesn't define suspend/resume methods, then the core simply
> unplugs it on suspend, and replugs on resume (IIRC).

No longer true, and IIRC it never was.  All that happens is that URB 
submissions fail with -EHOSTUNREACH once the device is suspended.

Alan Stern

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