linux-kernel - Re: [PATCH 0/2] Add a skeleton module to perform a basic initialization on certain USB devices

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Message-ID: <87zivwbh07.fsf@nemi.mork.no>
Date:	Sat, 23 Jan 2016 13:46:32 +0100
From:	Bjørn Mork <bjorn@...k.no>
To:	Michal Malý <madcatxster@...oid-pointer.net>
Cc:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, dmitry.torokhov@...il.com,
	jikos@...nel.org, elias.vds@...il.com, edwin@...ds.nl,
	simon@...gewell.org
Subject: Re: [PATCH 0/2] Add a skeleton module to perform a basic initialization on certain USB devices

Michal Malý <madcatxster@...oid-pointer.net> writes:

> This mini series adds a simple skeleton module whose only purpose is to bring
> devices that at first appear as a generic USB device into another mode that
> can be handled by a more specific subsystem.
>
> This patch was originally requested by Dmitry, reasoning that loading the
> entire xpad module just to switch a Logitech G920 wheel into HID mode is
> excessive and does not make much sense.
>
> The module can be extended to handle any other USB device that might require
> such a switch.

Can this switching be done in userspace? That's what we normally do, ref
usb_modeswitch.


Bjørn