Pisound and Yocto?

doocman · July 20, 2025, 11:08am

Hi! Does anyone know of a “simple” way to get the basic drivers functioning with Yocto? I am using the meta-raspberrypi with poky and the minimal image (the Pi will run with a custom, headless software and I want minimal other “bloat”). I’ll try to incorporate the driver myself but I am not a Yocto nor linux driver expert.

Giedrius · July 20, 2025, 8:09pm

Sure, the Pisound’s kernel driver is included with the Raspberry Pi kernel, just make sure it is enabled in the kernel config you use:

SND_PISOUND=m

The source is here:

github.com/raspberrypi/linux

sound/soc/bcm/Kconfig

rpi-6.12.y


      
          	select SND_AUDIO_GRAPH_CARD
          	help
          	  Say Y or M if you want to add support for Allo Katana DAC.
          
          config SND_BCM2708_SOC_FE_PI_AUDIO
          	tristate "Support for Fe-Pi-Audio"
          	select SND_SOC_SGTL5000
          	help
          	  Say Y or M if you want to add support for Fe-Pi-Audio.
          
          config SND_PISOUND
          	tristate "Support for Blokas Labs pisound"
          	select SND_RAWMIDI
          	help
          	  Say Y or M if you want to add support for Blokas Labs pisound.
          
          config SND_RPI_SIMPLE_SOUNDCARD
          	tristate "Support for Raspberry Pi simple soundcards"
          	help
          	  Say Y or M if you want to add support Raspbery Pi simple soundcards