Symbol: snd_pcm_oss_get_caps
sound/core/oss/pcm_oss.c
2702
res = snd_pcm_oss_get_caps(pcm_oss_file);
sound/core/oss/pcm_oss.c
2731
if (snd_pcm_oss_get_caps(pcm_oss_file) & DSP_CAP_DUPLEX)