I2s TDM input , how many channels?

Which system do you use? Android, Ubuntu, OOWOW or others?


Which version of system do you use? Khadas official images, self built images, or others?

Khadas official images

Please describe your issue below:

How many i2s TDM input channels have the VIM4? I test the out all the 8 channels and is ok but for input only 2 channels. I set the mask of dts for 8 rx and 8 tx but I read always 2 channels. I use also alsaloop -C hw:0,0 -P hw:0,0 -t 500000 -c 8 but the logic analyzer give me 2 channels also the buffer of snd_pcm_readi(capture_handle, buf, avail) ; only 2 channels but if I read the i2s pin data input signal there are all the 8 channels so I think there is a limit software inside that limit max 2 channels, is it possible?

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