Symbol: SND_VOL_0DB_MIN
sys/dev/sound/pcm/channel.c
1395
(val >= SND_VOL_0DB_MIN && val <= SND_VOL_0DB_MAX)),
sys/dev/sound/pcm/channel.c
166
if (val < SND_VOL_0DB_MIN || val > SND_VOL_0DB_MAX)