On Wed, Jun 16, 2010 at 9:55 AM, Takashi Iwai <tiwai@xxxxxxx> wrote:
>> > include/sound/ac97_codec.h | 2 ++
>> > 1 files changed, 2 insertions(+), 0 deletions(-)
>> >
>> > diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
>> > index 4940045..db3aee1 100644
>> > --- a/include/sound/ac97_codec.h
>> > +++ b/include/sound/ac97_codec.h
>> > @@ -437,6 +437,8 @@ struct snd_ac97_bus_ops {
>> > unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);
>> > void (*wait) (struct snd_ac97 *ac97);
>> > void (*init) (struct snd_ac97 *ac97);
>> > + void (*setgpio) (struct snd_ac97 *ac97, unsigned short gpio);
>> > + unsigned short (*getgpio) (struct snd_ac97 *ac97);
>
> Can this be handled simply in read/write callbacks in the controller
> side? In callbacks, you can check whether reg == AC97_GPIO_STATUS and
> handle differently for such an access.
Interesting Idea, and as a bonus requires no changes to the wm97xx code.
Thank you!
Manuel Lauss
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