register_sound_special 33 include/linux/sound.h extern int register_sound_special(const struct file_operations *fops, int unit); register_sound_special 1333 sound/oss/dmasound/dmasound_core.c state_unit = register_sound_special(&state_fops, SND_DEV_STATUS); register_sound_special 506 sound/oss/soundcard.c seq1=register_sound_special(&oss_sound_fops, 1); register_sound_special 509 sound/oss/soundcard.c seq2=register_sound_special(&oss_sound_fops, 8);