1,codec is kernel_imx/sound/soc/fsl/fsl_micfil.c
2,board is not evk, it is another board
3,full command:
tinycap test.wav -D 1-d 0-c 2-r 48000-b 16 (Recording works properly)
tinymix -D 1 8 1
tinycap test.wav -D 1 -d 0 -c 2 -r 48000 -b 16 (Failed to record)