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RFC multi-channel HDMI audio support

Wu Fengguang alsa-devel 1 version In review

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  1. v1 RFC Latest4 patches 5 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/4hda: make standalone hdmi_fill_audio_infoframe()sound/pci/hda/patch_intelhdmi.c+16 -90 replies
2/4hda: make global snd_print_channel_allocation()sound/pci/hda/hda_eld.c sound/pci/hda/hda_local.h+8 -60 replies
3/4hda: HDMI channel allocations for audio infoframesound/pci/hda/patch_intelhdmi.c+189 -04 replies
4/4hda: HDMI channel mapping cleanupssound/pci/hda/patch_intelhdmi.c+18 -110 replies

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Cover letter [PATCH 0/4] [RFC] multi-channel HDMI audio support

Hi all,

This patchset attempts to support multi-channel HDMI audio.

It contains two basic operations:

- setup the CA(channel-allcation) byte in the audio infoframe
- setup the converter channel to HDMI slot mapping

Please check the last two patches for the detailed descriptions:

[PATCH 1/4] hda: make standalone hdmi_fill_audio_infoframe() [PATCH 2/4] hda: make global snd_print_channel_allocation()

[PATCH 3/4] hda: HDMI channel allocations for audio infoframe [PATCH 4/4] hda: HDMI channel mapping cleanups

The current implementation only does minimal works that can ensure the multi-channel audio playing out. However the wrong speakers may be choosed, and I really need more information/knowledge/instructions from you to get it right.

Thank you,
Fengguang