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ucm: docs: Add CaptureChannelMap

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Add ucm value to tell userspace to remap channels. This is useful for
systems with DMICs where there may be more channels than active
channels.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
This commit is contained in:
Curtis Malainey 2019-09-24 10:52:31 -07:00
parent 14ad963e19
commit caf41d41fb
1 changed files with 4 additions and 0 deletions
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4
include/use-case.h
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@ -342,6 +342,10 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
* - CaptureMasterType
* - type of the master volume control
* - Valid values: "soft" (software attenuation)
* - CaptureChannelMap
* - Remap channels using ALSA PCM channel mapping API notation
* E.g. "2 3 0 1 -1 -1 -1 -1 -1 -1 -1" means, FL takes channel 2,
* FR takes channel 3, RL takes channel 0, RL takes channel 1.
* - EDIDFile
* - Path to EDID file for HDMI devices
* - JackCTL