snd_ctl_register_ioctl 123 include/sound/control.h int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn); snd_ctl_register_ioctl 1688 sound/core/control.c EXPORT_SYMBOL(snd_ctl_register_ioctl); snd_ctl_register_ioctl 523 sound/core/hwdep.c snd_ctl_register_ioctl(snd_hwdep_control_ioctl); snd_ctl_register_ioctl 1216 sound/core/pcm.c snd_ctl_register_ioctl(snd_pcm_control_ioctl); snd_ctl_register_ioctl 1826 sound/core/rawmidi.c snd_ctl_register_ioctl(snd_rawmidi_control_ioctl);