[ALSA] Control API - TLV implementation for additional information like dB scale

[~andy/linux] / sound / pci / ca0106 / ca0106_mixer.c

diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index 146eed70dce6e62a06a32a24d31f6524cb3d1a5e..35309b3ed8c0c218422fa2702ab70f1dffcc22ab 100644 (file)
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -70,9 +70,12 @@
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
 #include <sound/info.h>
+#include <sound/tlv.h>
 
 #include "ca0106.h"
 
+static DECLARE_TLV_DB_SCALE(snd_ca0106_db_scale, -5150, 75, 1);
+
 static int snd_ca0106_shared_spdif_info(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_info *uinfo)
 {
@@ -472,6 +475,7 @@ static int snd_ca0106_i2c_volume_put(struct snd_kcontrol *kcontrol,
        .info =  snd_ca0106_volume_info,                        \
        .get =   snd_ca0106_volume_get,                         \
        .put =   snd_ca0106_volume_put,                         \
+       .tlv =   snd_ca0106_db_scale,                           \
        .private_value = ((chid) << 8) | (reg)                  \
 }