linux-kernel - Re: [alsa-devel] [RFC] [PATCH 1/3] ASoC: Add support for Conexant CX20442-11 voice modem codec

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Message-ID: <20090728161131.GA22349@rakim.wolfsonmicro.main>
Date:	Tue, 28 Jul 2009 17:11:32 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
Cc:	alsa-devel@...a-project.org, Jonathan McDowell <noodles@...th.li>,
	Tony Lindgren <tony@...mide.com>,
	Peter Ujfalusi <peter.ujfalusi@...ia.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	e3-hacking@...th.li, Arun KS <arunks@...tralsolutions.com>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [alsa-devel] [RFC] [PATCH 1/3] ASoC: Add support for Conexant
 CX20442-11 voice modem codec

On Tue, Jul 28, 2009 at 06:07:29PM +0200, Janusz Krzysztofik wrote:

> What I would like to retain from the current codec driver are those two modes 
> of operation: without and with the line discipline activated. Initially, the 
> codec would be registered as a platform device, as it is now. Activation of 
> the line discipline would deregister the codec device from the platform bus 
> and reregister it again, now as the line discipline provided device. Is this 
> possible with current ASoC framework?

No, not currently.  But why would you do that, anyway?

Like I say, I'd suggest always keeping the controls registered and just
masking and unmasking from user space - the control indexes get used so
removing them will just confuse things.
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