qemu host virtio device don't support recvice the same cmd like start/stop twice Signed-off-by: shipei <shipei@xiaomi.com>
playback test: nxplayer device /dev/audio/pcm0p playraw /data/test.wav 2 16 44100 stop record test: nxrecorder device /dev/audio/pcm0c recordraw /data/rec.pcm 2 16 16000 stop Signed-off-by: shipei <shipei@xiaomi.com>