2024-09-29 20:08:20 +00:00
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# Stock firmware exposes a 4ch dmic while MrChromebox firmware exposes a 2ch dmic for windows support
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# Stock firmware version string includes "Google_<board>" while MrChromebox firmware string is "MrChromebox-<version>"
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2023-05-20 22:06:04 +00:00
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If.4ch {
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Condition {
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Type String
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Haystack "${sys:devices/virtual/dmi/id/bios_version}"
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Needle "Google"
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}
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2024-09-29 20:08:20 +00:00
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True.Define.DmicChannels 4
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False.Define.DmicChannels 2
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}
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2023-05-20 22:06:04 +00:00
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2024-09-29 20:08:20 +00:00
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SectionDevice."Internal Mic" {
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Comment "Internal Microphone"
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2023-05-20 22:06:04 +00:00
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2024-09-29 20:08:20 +00:00
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Value {
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CapturePriority 100
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CapturePCM "hw:${CardId},2"
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CaptureChannels "${var:DmicChannels}"
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2023-05-20 22:06:04 +00:00
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}
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2024-09-29 20:08:20 +00:00
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EnableSequence [
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cset "name='DMIC Volume' 2147483647"
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]
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2023-05-20 22:06:04 +00:00
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}
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