Hi mkumard and thanks for the help,
$ amixer -c APE cset name=“I2S2 Mux” “ADMAIF2”
gives me :
amixer: Cannot find the given element from control hw:1
However I2S2 Mux is present when I use amixer controles:
$ amixer -c APE controls | grep I2S2
numid=322,iface=MIXER,name='I2S2 BCLK Ratio'
numid=310,iface=MIXER,name='I2S2 Capture Audio Bit Format'
numid=313,iface=MIXER,name='I2S2 Capture Audio Channels'
numid=318,iface=MIXER,name='I2S2 Capture Mono To Stereo'
numid=317,iface=MIXER,name='I2S2 Capture Stereo To Mono'
numid=311,iface=MIXER,name='I2S2 Client Bit Format'
numid=314,iface=MIXER,name='I2S2 Client Channels'
numid=316,iface=MIXER,name='I2S2 FSYNC Width'
numid=315,iface=MIXER,name='I2S2 Loopback'
numid=1301,iface=MIXER,name='I2S2 Mux'
numid=309,iface=MIXER,name='I2S2 Playback Audio Bit Format'
numid=312,iface=MIXER,name='I2S2 Playback Audio Channels'
numid=321,iface=MIXER,name='I2S2 Playback FIFO Threshold'
numid=320,iface=MIXER,name='I2S2 Playback Mono To Stereo'
numid=319,iface=MIXER,name='I2S2 Playback Stereo To Mono'
numid=308,iface=MIXER,name='I2S2 Sample Rate'
numid=1651,iface=MIXER,name='I2S2 codec frame mode'
numid=1652,iface=MIXER,name='I2S2 codec master mode'
But I think it might be a problem with the sound card, it doesn’t look to be properly recognised?
$ cat /proc/asound/cards
0 [HDA ]: tegra-hda - NVIDIA Jetson AGX Orin HDA
NVIDIA Jetson AGX Orin HDA at 0x3518000 irq 116
1 [APE ]: tegra-ape - NVIDIA Jetson AGX Orin APE
Unknown-JetsonAGXOrin-NotSpecified
I recently updated the firmware from Jetson Linux 35.1 to 35.3, could that be a factor?