linux-kernel - Re: [PATCH 2/2] firewire: core: add sysfs attribute for easier udev rules

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Date:	Sat, 23 May 2009 02:35:36 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	linux1394-devel@...ts.sourceforge.net,
	linux-hotplug@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] firewire: core: add sysfs attribute for easier udev 
	rules

On Fri, May 22, 2009 at 23:17, Stefan Richter <stefanr@...6.in-berlin.de> wrote:
> This adds the attribute /sys/bus/firewire/devices/fw[0-9]+/units.  It
> can be used in udev rules like the following ones:
>
> # IIDC devices: industrial cameras and some webcams
> SUBSYSTEM=="firewire", ATTR{units}=="*0x00a02d:0x00010?*", GROUP="video"
>
> # AV/C devices: camcorders, set-top boxes, TV sets, audio devices, ...
> SUBSYSTEM=="firewire", ATTR{units}=="*0x00a02d:0x010001*", GROUP="video"

> Here is an example of a node which implements an IPv4 unit and an IPv6
> unit:  $ cat /sys/bus/firewire/devices/fw2/units
> 0x00005e:0x000001 0x00005e:0x000002

Looks great. Let me know when you are merging this, so we can put the
rules in the udev tree.

Thanks,
Kay
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