On 04/20/2016 10:03 AM, Petr Kulhavy wrote: > Hello, > > I'm writing a driver for ASoC "sound card" hardware which uses CPU GPIO to > mute/unmute an analogue amplifier and another GPIO to control an analogue > switch for line/mic switching. Is there an abstraction in ALSA to model this > kind of hardware? There is no abstraction. Use controls and/or DAPM and the standard GPIO API, if you grep the sources you'll find a few examples of drivers using GPIOs to mute amplifiers and similar (e.g. qi_lb60). - Lars _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
