[E3-hacking] [alsa-devel] [RFC] [PATCH 1/3] ASoC: Add support for Conexant CX20442-11 voice modem codec
jkrzyszt at tis.icnet.pl
Tue Jul 28 17:36:01 BST 2009
Tuesday 28 July 2009 18:11:32 Mark Brown wrote:
> On Tue, Jul 28, 2009 at 06:07:29PM +0200, Janusz Krzysztofik wrote:
> > 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.
However, in order for the machine driver to unmask/mask a machine specific
control, the codec driver must drop the machine driver a message about the
line discipline being activeted/deactivated, right? The only such existing
feedback I can see the codec is able to use is via snd_soc_init_card() that
calls snd_soc_dai_link.init() in turn. Am I missing something?
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