hp_r_vol_control 1632 sound/soc/codecs/rt5645.c static const struct snd_kcontrol_new hp_r_vol_control = hp_r_vol_control 2208 sound/soc/codecs/rt5645.c SND_SOC_DAPM_SWITCH("HPOVOL R", SND_SOC_NOPM, 0, 0, &hp_r_vol_control),