archr/Arch-R
0
0
Fork 0
mirror of https://github.com/archr-linux/Arch-R.git synced 2026-07-12 18:19:42 -07:00
Code Issues Packages Projects Releases Wiki Activity

headphone_sense: sync the startup path with the real jack switch state

Browse Source 
The boot-time probe read a legacy /sys/class/gpio number that mainline
kernels never expose, so the initial audio path was always the speaker
guess and a reboot with headphones plugged started routed wrong. Query
the actual EV_SW/SW_HEADPHONE_INSERT bit through evtest --query (exit
10 = bit set; on these boards the switch is inverted, value 0 means
inserted) with the legacy gpio node as fallback, make an empty "$2"
follow the detected state instead of forcing speakers, and bail out
before the event loop when the board has no jack input device at all
(evtest on an empty path just dies and burns service restarts).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Douglas Teles
2026-07-07 18:27:14 -03:00
parent bd6fb8d0a9
commit 8aacf5c823
1 changed files with 25 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
projects/ArchR/packages/sysutils/system-utils/sources/scripts/headphone_sense
+25 -12
View File
@@ -11,16 +11,21 @@ if [[ ${AUDIO_MANAGEMENT} == "UCM" ]]; then
exit 0
fi
# Switch to headphones if we have them already connected at boot.
# DEVICE_JACK is a legacy gpio sysfs number; mainline kernels don't
# expose /sys/class/gpio, so only trust it when the node really exists
# and otherwise start from the speaker path.
if [ -n "${DEVICE_JACK}" ] && [ -e "/sys/class/gpio/gpio${DEVICE_JACK}/value" ]; then
GPIO=$(cat /sys/class/gpio/gpio${DEVICE_JACK}/value)
else
GPIO=1
# Sync with the REAL jack state at startup. The kernel keeps the switch
# state in the input device (EV_SW/SW_HEADPHONE_INSERT), so query it via
# evtest --query (exit 10 = bit set) instead of trusting a saved setting
# or the legacy /sys/class/gpio number, which mainline kernels don't
# even expose. On these boards the switch is inverted: value 0 means
# headphones inserted (see HP_ON below), so bit set = speakers.
# Fallback order: input switch, legacy gpio node when it exists, speakers.
JACK_STATE="speakers"
if [ -n "${DEVICE_HEADPHONE_DEV}" ] && [ -e "${DEVICE_HEADPHONE_DEV}" ]; then
evtest --query "${DEVICE_HEADPHONE_DEV}" EV_SW SW_HEADPHONE_INSERT
[ $? -eq 0 ] && JACK_STATE="headphone"
elif [ -n "${DEVICE_JACK}" ] && [ -e "/sys/class/gpio/gpio${DEVICE_JACK}/value" ]; then
[ "$(cat /sys/class/gpio/gpio${DEVICE_JACK}/value)" = "0" ] && JACK_STATE="headphone"
fi
[[ "$GPIO" == "0" ]] && set_setting "audio.device" "headphone" || set_setting "audio.device" "speakers"
set_setting "audio.device" "${JACK_STATE}"
### Set the default audio path, needed for some devices
if [ -z "${DEVICE_PLAYBACK_PATH}" ]
@@ -28,8 +33,9 @@ then
DEVICE_PLAYBACK_PATH="Playback Path"
fi
STARTUP_DEVICE=$(get_setting "audio.device")
case "${2}" in
# An explicit request wins; "auto" (or nothing) follows the jack state
# detected above, so a reboot with headphones plugged starts on HP.
case "${2:-${JACK_STATE}}" in
"headphone")
amixer -c 0 -M cset "name=${DEVICE_PLAYBACK_PATH}" "${DEVICE_PLAYBACK_PATH_HP}"
;;
@@ -40,9 +46,16 @@ esac
/usr/bin/volume $(get_setting "audio.volume")
# Headphone sensing
# Headphone sensing
DEVICE="${DEVICE_HEADPHONE_DEV}"
# No jack input device on this board: nothing to watch, the initial
# path set above is all there is (evtest on an empty path would just
# die and burn a service restart cycle).
if [ -z "${DEVICE}" ] || [ ! -e "${DEVICE}" ]; then
exit 0
fi
HP_ON='*(SW_HEADPHONE_INSERT), value 0*'
HP_OFF='*(SW_HEADPHONE_INSERT), value 1*'