sofia 发布的最佳帖子

如题，现在有这方面需求，谢谢

root@(none):/tmp# ./tinyplay 16000-stereo-s16_le-10s.wav -D 0
failed to open for pcm 0,0

看了内核打印声卡都有：
1.366236] debugfs: Directory 'soc@2002000:codec_plat' with parent 'audiocodec' already present!
[ 1.376538] sunxi-snd-mach soc@2002000:codec_mach: 42030000.codec <-> soc@2002000:codec_plat mapping ok
[ 1.388773] sunxi:sound-mach:[WARN]: 372 asoc_simple_parse_ucfmt(): set data late to default
[ 1.398399] sunxi-snd-mach soc@2002000:i2s0_mach: No 'sound-dai' property
[ 1.406426] debugfs: Directory '42032000.i2s0_plat' with parent 'sndi2s0' already present!
[ 1.416044] sunxi-snd-mach soc@2002000:i2s0_mach: snd-soc-dummy-dai <-> 42032000.i2s0_plat mapping ok
[ 1.432334] ALSA device list:
[ 1.435786] #0: audiocodec
[ 1.439051] #1: sndi2s0

有哪位大佬遇到过吗?麻烦指点一下哪里问题.