linux-kernel - Re: [PATCH] dvb: Allow MAC addresses to be mapped to stable device names with udev

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Message-ID: <10735.1540983675@warthog.procyon.org.uk>
Date:   Wed, 31 Oct 2018 11:01:15 +0000
From:   David Howells <dhowells@...hat.com>
To:     Sean Young <sean@...s.org>
Cc:     dhowells@...hat.com,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Michael Krufky <mkrufky@...uxtv.org>,
        Brad Love <brad@...tdimension.cc>, mchehab@...nel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dvb: Allow MAC addresses to be mapped to stable device names with udev

Sean Young <sean@...s.org> wrote:

> > How do I tell?  If it's all zeros it's not there?
> 
> The mac gets populated through read_mac_address member of
> dvb_usb_device_properties.

That doesn't seem to be true for all drivers. The cx23885 driver does things
differently, for instance.

David