[10/11] ucm: docs: Add SoftwareGain
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Message ID 20191107015808.26844-10-cujomalainey@chromium.org
State New
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Series
  • [01/11] ucm: docs: Add JackName value
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Commit Message

Curtis Malainey Nov. 7, 2019, 1:58 a.m. UTC
Add software gain ucm definition.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
---
 include/use-case.h | 3 +++
 1 file changed, 3 insertions(+)

Comments

Jaroslav Kysela Nov. 11, 2019, 3:33 p.m. UTC | #1
Dne 07. 11. 19 v 2:58 Curtis Malainey napsal(a):
> Add software gain ucm definition.
> 
> Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
> ---
>   include/use-case.h | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/include/use-case.h b/include/use-case.h
> index e84f3f8f..ee6ee5e0 100644
> --- a/include/use-case.h
> +++ b/include/use-case.h
> @@ -344,6 +344,9 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
>    *      - This is used on platform where reported buffer level is not accurate.
>    *        E.g. "512", which holds 512 samples in device buffer. Note: this will
>    *        increase latency.
> + *   - SoftwareGain
> + *      - Specify the software gain in 0.01dB. E.g. "20" means there will be
> + *        0.2 dB software gain on this node.
>    *   - DisableSoftwareVolume
>    *      - Set to "1" to force userspace to use hardware volume controls
>    */
> 

In other words, it's the recommended software gain control? The description 
should be improved then.

						Jaroslav
Curtis Malainey Nov. 11, 2019, 6:46 p.m. UTC | #2
On Mon, Nov 11, 2019 at 7:33 AM Jaroslav Kysela <perex@perex.cz> wrote:
>
> Dne 07. 11. 19 v 2:58 Curtis Malainey napsal(a):
> > Add software gain ucm definition.
> >
> > Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
> > ---
> >   include/use-case.h | 3 +++
> >   1 file changed, 3 insertions(+)
> >
> > diff --git a/include/use-case.h b/include/use-case.h
> > index e84f3f8f..ee6ee5e0 100644
> > --- a/include/use-case.h
> > +++ b/include/use-case.h
> > @@ -344,6 +344,9 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
> >    *      - This is used on platform where reported buffer level is not accurate.
> >    *        E.g. "512", which holds 512 samples in device buffer. Note: this will
> >    *        increase latency.
> > + *   - SoftwareGain
> > + *      - Specify the software gain in 0.01dB. E.g. "20" means there will be
> > + *        0.2 dB software gain on this node.
> >    *   - DisableSoftwareVolume
> >    *      - Set to "1" to force userspace to use hardware volume controls
> >    */
> >
>
> In other words, it's the recommended software gain control? The description
> should be improved then.
>
>                                                 Jaroslav
>
Not the control/mixer, in this case it is a gain value that is
expected to be applied by the audio server (should the server parse
it)
> --
> Jaroslav Kysela <perex@perex.cz>
> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.

Patch
diff mbox series

diff --git a/include/use-case.h b/include/use-case.h
index e84f3f8f..ee6ee5e0 100644
--- a/include/use-case.h
+++ b/include/use-case.h
@@ -344,6 +344,9 @@  int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
  *      - This is used on platform where reported buffer level is not accurate.
  *        E.g. "512", which holds 512 samples in device buffer. Note: this will
  *        increase latency.
+ *   - SoftwareGain
+ *      - Specify the software gain in 0.01dB. E.g. "20" means there will be
+ *        0.2 dB software gain on this node.
  *   - DisableSoftwareVolume
  *      - Set to "1" to force userspace to use hardware volume controls
  */