[alsa-devel] [RFC] ucb1400 touchscreen, irq auto probing and ac97 with its private field

Takashi Iwai tiwai at suse.de
Fri Apr 25 15:04:45 CEST 2008

At Fri, 25 Apr 2008 13:22:11 +0200 (CEST),
Jaroslav Kysela wrote:
> On Fri, 25 Apr 2008, Takashi Iwai wrote:
> > Your driver does _not_ know what type it is because the data isn't
> > created by your driver but the controller driver.  And, it's free to
> > attach your driver to any controller.
> But controller knows which codec (using ID bytes) is attached, thus it can 
> fill appropriate information only for this codec.

This would be an option, too.

> Of course, it will work 
> when only one additional device is sharing bus with codec. See:
> http://www.nxp.com/pip/UCB1400-02.html



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