On Mon, Jul 13, 2009 at 04:12:14PM +0800, 宋宝华 wrote: > I want to use ADC/DAC widgets.> static const struct snd_soc_dapm_widget ad1938_dapm_widgets[] = {> SND_SOC_DAPM_DAC("DAC", "HiFi Playback", AD1938_DAC_CTRL0, 0, 1),> SND_SOC_DAPM_ADC("ADC", "HiFi Capture", AD1938_ADC_CTRL0, 0, 1),> };> But for this AD1938 codec, DAC's work depends on ADC is powered on in> hardware. I think there is no any mechanism to handle this kind of> strange depending now. So is there a generic way to handle this? Make the ADC power a SND_SOC_DAPM_SUPPLY() supplying both the DAC andthe ADC, with the ADC widget marged as having no power management._______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel