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Message-Id: <200808272105.50169.oliver@neukum.org>
Date: Wed, 27 Aug 2008 21:05:49 +0200
From: Oliver Neukum <oliver@...kum.org>
To: Alan Stern <stern@...land.harvard.edu>
Cc: Greg KH <greg@...ah.com>, USB list <linux-usb@...r.kernel.org>,
Stefan Kopp <stefan_kopp@...lent.com>,
Marcel Janssen <korgull@...e.nl>,
Felipe Balbi <me@...ipebalbi.com>,
Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] USB: add USB test and measurement class driver - round 2
Am Mittwoch 27 August 2008 20:58:08 schrieb Alan Stern:
> > And this rule depends on sharing the USB major or not. This needs
> > a big fat mention in Documentation.
>
> You mean that the open/disconnect locking rule applies only to drivers
> that call usb_register_dev, i.e, drivers using the USB major. Right?
Yes. In fact drivers not using the USB major but their own char devices
will need such a lock. This is tricky.
> I agree that it deserves to be mentioned in the documentation
> somewhere. Where would be a good place? None of the existing files in
> Documentation/usb seem appropriate.
The USB major merits a file of its own.
Regards
Oliver
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