[alsa-devel] [PATCH 07/11] ucm: docs: Add CaptureChannelMap
Curtis Malainey
cujomalainey at chromium.org
Thu Nov 7 02:58:04 CET 2019
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 at chromium.org>
---
include/use-case.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/use-case.h b/include/use-case.h
index 1aeaf9d4..31f9e4be 100644
--- a/include/use-case.h
+++ b/include/use-case.h
@@ -301,6 +301,10 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
* - name of capture mixer
* - CaptureMixerID
* - mixer capture ID
+ * - 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
* - JackControl, JackDev, JackHWMute
--
2.24.0.432.g9d3f5f5b63-goog
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