diff options
Diffstat (limited to 'sound/drivers')
| -rw-r--r-- | sound/drivers/dummy.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c index 73b16134a43..42001efa9f3 100644 --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -29,6 +29,7 @@ #include <linux/moduleparam.h> #include <sound/core.h> #include <sound/control.h> +#include <sound/tlv.h> #include <sound/pcm.h> #include <sound/rawmidi.h> #include <sound/initval.h> @@ -443,10 +444,13 @@ static int __init snd_card_dummy_pcm(struct snd_dummy *dummy, int device, int su } #define DUMMY_VOLUME(xname, xindex, addr) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ + .name = xname, .index = xindex, \ .info = snd_dummy_volume_info, \ .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \ - .private_value = addr } + .private_value = addr, \ + .tlv = { .p = db_scale_dummy } } static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) @@ -497,6 +501,8 @@ static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol, return change; } +static DECLARE_TLV_DB_SCALE(db_scale_dummy, -4500, 30, 0); + #define DUMMY_CAPSRC(xname, xindex, addr) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ .info = snd_dummy_capsrc_info, \ |