snd_ctl_file 63 include/sound/control.h struct snd_ctl_file *owner; /* locked */ snd_ctl_file 109 include/sound/control.h #define snd_ctl_file(n) list_entry(n, struct snd_ctl_file, list) snd_ctl_file 112 include/sound/control.h struct snd_ctl_file * control,