SND_MIXER_OSS_NOTIFY_DISCONNECT 371 sound/core/init.c snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT); SND_MIXER_OSS_NOTIFY_DISCONNECT 1355 sound/core/oss/mixer_oss.c if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)