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Added kvmd-udev-restart pass and udev rule to restart kvmd-pass on plugging HDMI-A-1

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https://forums.raspberrypi.com/viewtopic.php?p=2202017
This commit is contained in:
Maxim Devaev 2024-03-11 17:11:55 +02:00
parent 5274673ab6
commit 9e96772533
3 changed files with 53 additions and 0 deletions
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3
PKGBUILD
View File

@ -217,6 +217,9 @@ for _variant in "${_variants[@]}"; do
if [[ $_platform =~ ^.*-hdmiusb$ ]]; then
install -Dm755 -t \"\$pkgdir/usr/bin\" scripts/kvmd-udev-hdmiusb-check
fi
if [[ $_base == v4plus ]]; then
install -Dm755 -t \"\$pkgdir/usr/bin\" scripts/kvmd-udev-restart-pass
fi
install -DTm644 configs/os/sysctl.conf \"\$pkgdir/etc/sysctl.d/99-kvmd.conf\"
install -DTm644 configs/os/udev/common.rules \"\$pkgdir/usr/lib/udev/rules.d/99-kvmd-common.rules\"

1
configs/os/udev/v4plus-hdmi-rpi4.rules
View File

@ -4,3 +4,4 @@ KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="fe801000.csi|fe801000
KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"
SUBSYSTEM=="drm", ACTION=="change", ENV{DEVLINKS}=="/dev/dri/by-path/platform-gpu-card", RUN+="/usr/bin/kvmd-udev-restart-pass %k %E{CONNECTOR}"

49
scripts/kvmd-udev-restart-pass Executable file
View File

@ -0,0 +1,49 @@
#!/bin/bash
# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2023 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
set -eE
set -x
# https://forums.raspberrypi.com/viewtopic.php?p=2202017
card="$1"
conn_id="$2"
test -n "$card"
test -n "$conn_id"
card_n="${card/card/}"
test -n "$card_n"
port=$(grep "^connector\[$conn_id\]:" "/sys/kernel/debug/dri/$card_n/state" | awk '{print $1}')
test -n "$port"
if [ "$port" = "HDMI-A-1" ]; then
if systemctl is-enabled -q kvmd-pass; then
status=$(head -n 1 "/sys/class/drm/$card-$port/status")
if [ "$status" = "connected" ]; then
systemctl restart kvmd-pass || true
fi
fi
fi