snd_pcm_oss_get_caps 2560 sound/core/oss/pcm_oss.c 		res = snd_pcm_oss_get_caps(pcm_oss_file);
snd_pcm_oss_get_caps 2589 sound/core/oss/pcm_oss.c 		if (snd_pcm_oss_get_caps(pcm_oss_file) & DSP_CAP_DUPLEX)