PARA_INFO_LOG("snd_mixer_{open,attach,register,load}\n");
*handle = NULL;
PARA_INFO_LOG("snd_mixer_{open,attach,register,load}\n");
*handle = NULL;
h->card = para_strdup(dev? dev : "hw:0");
ret = snd_mixer_open(&h->mixer, 0);
if (ret < 0) {
h->card = para_strdup(dev? dev : "hw:0");
ret = snd_mixer_open(&h->mixer, 0);
if (ret < 0) {