37 lines
1.0 KiB
Bash
37 lines
1.0 KiB
Bash
#!/bin/sh
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#===============================================================================
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#
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# hdmi_hotplug.sh
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#
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# Copyright (C) 2017 by Digi International Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 as published by
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# the Free Software Foundation.
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#
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#
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# !Description: HDMI hotplug script called from udev on HDMI plug/unplug event
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#
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#===============================================================================
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# Find HDMI card number
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for card in /sys/class/sound/card*; do
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if readlink "${card}/device" | grep -qs hdmi; then
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HDMI_CARD="${card##/sys/class/sound/card}"
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break
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fi
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done
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# On HDMI plugin event, if the sink has not been loaded yet, load the
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# HDMI audio sink from ALSA
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if [ "${EVENT}" = "plugin" ]; then
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if ! pactl list sinks | grep -qs "imx-hdmi-soc"; then
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card-detect "${HDMI_CARD}"
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# Set HDMI as default sink
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pactl set-default-sink "$(pactl list sinks | grep -i 'Name:.*hdmi' | cut -d ' ' -f2)"
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fi
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fi
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