CODEWITHSUNDEEP
androidlinux-device-driveralsaandroid-kerneltinyalsa
user2124324
user2124324

Reputation: 161

How to add a PCM Device in /dev/snd

Currently under /dev/snd/, I have the following devices

controlC0
pcmC0D0c
pcmC0D0p
timer

How do I add another device (i.e. pcmC0D1p)? The system is running Android, and it currently uses tiny ALSA for audio.

Upvotes: 1

Views: 2250

Answers (1)

fadedbee
fadedbee

Reputation: 44745

Requirements for a new soundcard (not what asked, but maybe what was meant):

  • Your new audio hardware is connected.
  • The kernel is compiled with a driver for the new hardware.
  • Your Android build's device-tree has configuration information, if the device uses an I2S, I2C, SPI or other low-level connection.

pcmC0D1p is another (p)layback device on the same soundcard pcmC0 (card 0).

If the soundcard, kernel and device-tree all support it, it will appear.

Upvotes: 1

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