I have a I2S mems microphone from adafruit. Now I am following the guide at https://github.com/nejohnson2/rpi-i2s#compile-the-i2s-module
Now after I have mounted the
debugfs I attempt to look for the given module:
$ sudo mount -t debugfs debugs /sys/kernel/debug $ sudo cat /sys/kernel/debug/asoc/platforms 3f203000.i2s snd-soc-dummy
However, if I run this code I merely get the following result:
sudo mount -t debugfs debugs /sys/kernel/debug
mount: debugs is already mounted or /sys/kernel/debug busy
sudo cat /sys/kernel/debug/asoc/platforms
cat: /sys/kernel/debug/asoc/platforms: No such file or directory
So am I missing something here. I have another PI which has the same mic and the same wiring and there I can use the microphone without problems.
Any help is much appreciated.
I did follow the Adafruit tutorial and in
dmesg I do see the Hello world output from the
Here is the output of
dmesg in a gist.