Dear ALSA-devel members, I want to add subdevices to our ASoC drivers, for example: card 0: imxesai [imxesai], device 0: imxesai PCM [imxesai PCM] Subdevices: 3/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 I saw BCM2835 use 8 subdevices in sound/arm/, but it is not standard ASoC driver. What should I do if I want to add subdevices in standard ASoC driver? Can anyone show me an example? Thanks! Ge Lei 2014-7-21