Re: [master][RFC PATCH v2 2/3] recipes-multimedia: Add wireplumber audio configuration

On Tue, Feb 10, 2026 at 09:22:00PM +0530, Paresh Bhagat wrote:
> - Add set-audio-defaults.sh script for audio setup
> - Add set-audio-defaults.service systemd service
> - Add wireplumber_%.bbappend recipe extension
> 
> Signed-off-by: Paresh Bhagat <[email protected]>
> ---
>  .../wireplumber/set-audio-defaults.service    | 14 +++++++++
>  .../wireplumber/set-audio-defaults.sh         | 30 +++++++++++++++++++
>  .../wireplumber/wireplumber_%.bbappend        | 27 +++++++++++++++++
>  3 files changed, 71 insertions(+)
>  create mode 100644 meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.service
>  create mode 100755 meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.sh
>  create mode 100644 meta-arago-distro/recipes-multimedia/wireplumber/wireplumber_%.bbappend
> 
> diff --git a/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.service b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.service
> new file mode 100644
> index 00000000..b3874542
> --- /dev/null
> +++ b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.service
> @@ -0,0 +1,14 @@
> +[Unit]
> +Description=Set PipeWire Default Audio Devices
> +After=wireplumber.service
> +Requires=wireplumber.service
> +
> +[Service]
> +Type=oneshot
> +ExecStart=/usr/bin/set-audio-defaults.sh
> +StandardOutput=append:/var/log/set-audio-defaults-output.log
> +StandardError=append:/var/log/set-audio-defaults-error.log
> +RemainAfterExit=yes
> +
> +[Install]
> +WantedBy=multi-user.target
> diff --git a/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.sh b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.sh
> new file mode 100755
> index 00000000..83b89225
> --- /dev/null
> +++ b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber/set-audio-defaults.sh
> @@ -0,0 +1,30 @@
> +#!/bin/bash

You might want to consider making this script POSIX compatible avoiding any 
bashisms, if any, to not require bash as a dependency - it is GPLv3 and not 
everyone will be willing to add it to their product...


> +
> +# Wait for WirePlumber to be ready
> +for i in {1..30}; do
> +    wpctl status &>/dev/null && break
> +    sleep 1
> +done
> +
> +# Additional delay for nodes to appear
> +sleep 2
> +
> +# Find audio sink ID
> +SINK_ID=$(pw-cli info alsa_audio_sink 2>/dev/null | head -n 1 | awk '{print $2}')
> +if [[ -n "$SINK_ID" ]]; then
> +    wpctl set-default "$SINK_ID"
> +    echo "Set default sink to ID: $SINK_ID (alsa_audio_sink)"
> +else
> +    echo "Could not find alsa_audio_sink"
> +fi
> +
> +# Find audio source ID
> +SOURCE_ID=$(pw-cli info alsa_audio_source 2>/dev/null | head -n 1 | awk '{print $2}')
> +if [[ -n "$SOURCE_ID" ]]; then
> +    wpctl set-default "$SOURCE_ID"
> +    echo "Set default source to ID: $SOURCE_ID (alsa_audio_source)"
> +else
> +    echo "Could not find alsa_audio_source"
> +fi
> +
> +echo "Done"
> diff --git a/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber_%.bbappend b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber_%.bbappend
> new file mode 100644
> index 00000000..9a697aa1
> --- /dev/null
> +++ b/meta-arago-distro/recipes-multimedia/wireplumber/wireplumber_%.bbappend

Same comment about guarding the bbappend of an upstream recipe.


> @@ -0,0 +1,27 @@
> +FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
> +
> +SRC_URI += " \
> +    file://set-audio-defaults.sh \
> +    file://set-audio-defaults.service \
> +"
> +
> +inherit systemd
> +
> +do_install:append() {
> +    # Install the script
> +    install -d ${D}${bindir}
> +    install -m 0755 ${WORKDIR}/sources/set-audio-defaults.sh ${D}${bindir}/

Same comment about UNPACKDIR


> +    # Install the systemd service file
> +    install -d ${D}${systemd_system_unitdir}
> +    install -m 0644 ${WORKDIR}/sources/set-audio-defaults.service ${D}${systemd_system_unitdir}/

And here


> +}
> +
> +RDEPENDS:${PN} += "bash"
> +SYSTEMD_PACKAGES = "${PN}"
> +SYSTEMD_SERVICE:${PN} = "set-audio-defaults.service"
> +SYSTEMD_AUTO_ENABLE:${PN} = "enable"
> +
> +FILES:${PN} += " \
> +    ${bindir} \
> +"
> -- 
> 2.34.1