diff options
| author | Takashi Iwai <tiwai@suse.de> | 2006-08-23 13:07:19 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-09-23 10:43:19 +0200 |
| commit | fb567a8e4f077b7b084c0558706339c35a4fb186 (patch) | |
| tree | 63bfffca736bb7992cee1a566478fa7d967a3608 /sound/drivers/dummy.c | |
| parent | a0aef8edfc9d6d682dba557fe42599297cbc329a (diff) | |
| download | linux-fb567a8e4f077b7b084c0558706339c35a4fb186.tar.gz | |
[ALSA] Add dB scale information to dummy driver
Added the dB scale information to dummy driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/drivers/dummy.c')
| -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 73b16134a434..42001efa9f3e 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, \ |