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| author | Stephen Warren <swarren@nvidia.com> | 2011-06-01 11:14:18 -0600 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-06-06 12:51:59 +0200 |
| commit | 74b654c957e901e7596ebc7b9f5a1bea62b20509 (patch) | |
| tree | 2ae316f1b481c0ad4a84c1caff9b99ca57fe63ba /sound/pci/hda/patch_ca0110.c | |
| parent | 7c9359762797ba7a70bbaa6364aaecc16786ac83 (diff) | |
| download | lwn-74b654c957e901e7596ebc7b9f5a1bea62b20509.tar.gz lwn-74b654c957e901e7596ebc7b9f5a1bea62b20509.zip | |
ALSA: hda: Virtualize SPDIF out controls
The SPDIF output controls apply to converter widgets. A future change
will create a PCM device per pin widget, and hence a set of SPDIF output
controls per pin widget, for certain HDMI codecs. To support this, we
need the ability to virtualize the SPDIF output controls. Specifically:
* Controls can be "unassigned" from real hardware when a converter is
not used for the PCM the control was created for.
* Control puts only write to hardware when they are assigned.
* Controls can be "assigned" to real hardware when a converter is picked
to support output for a particular PCM.
* When a converter is assigned, the hardware is updated to the cached
configuration.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_ca0110.c')
| -rw-r--r-- | sound/pci/hda/patch_ca0110.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_ca0110.c b/sound/pci/hda/patch_ca0110.c index 61b92634b161..6b406840846e 100644 --- a/sound/pci/hda/patch_ca0110.c +++ b/sound/pci/hda/patch_ca0110.c @@ -240,7 +240,8 @@ static int ca0110_build_controls(struct hda_codec *codec) } if (spec->dig_out) { - err = snd_hda_create_spdif_out_ctls(codec, spec->dig_out); + err = snd_hda_create_spdif_out_ctls(codec, spec->dig_out, + spec->dig_out); if (err < 0) return err; err = snd_hda_create_spdif_share_sw(codec, &spec->multiout); |