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71-seat.rules
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# SPDX-License-Identifier: LGPL-2.1-or-later # # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. ACTION=="remove", GOTO="seat_end" TAG=="uaccess", SUBSYSTEM!="sound", TAG+="seat" SUBSYSTEM=="sound", KERNEL=="card*", TAG+="seat" SUBSYSTEM=="input", KERNEL=="input*", TAG+="seat" SUBSYSTEM=="graphics", KERNEL=="fb[0-9]*", TAG+="seat" # Assign keyboard and LCD backlights to the seat SUBSYSTEM=="leds", TAG+="seat" SUBSYSTEM=="backlight", TAG+="seat" # Allow efifb / uvesafb to be a master if KMS is disabled SUBSYSTEM=="graphics", KERNEL=="fb[0-9]", IMPORT{cmdline}="nomodeset", TAG+="master-of-seat" # Allow any PCI graphics device to be a master and synthesize a seat if KMS # is disabled and the kernel doesn't have a driver that would work with this device. SUBSYSTEM=="pci", ENV{ID_PCI_CLASS_FROM_DATABASE}=="Display controller", \ ENV{DRIVER}=="", IMPORT{cmdline}="nomodeset", TAG+="seat", TAG+="master-of-seat" # Synthesize a seat for graphic devices without DRM and that fall back to fb # device instead. Such HWs are listed in hwdb. SUBSYSTEM=="graphics", KERNEL=="fb[0-9]*", ATTRS{modalias}=="?*", IMPORT{builtin}="hwdb fb:$attr{modalias}" ENV{ID_TAG_MASTER_OF_SEAT}=="1", TAG+="master-of-seat" SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="seat", TAG+="master-of-seat" # Allow individual USB ports to be assigned to a seat SUBSYSTEM=="usb", ATTR{bDeviceClass}=="00", TAG+="seat" # Allow USB hubs (and all downstream ports) to be assigned to a seat SUBSYSTEM=="usb", ATTR{bDeviceClass}=="09", TAG+="seat" # 'Plugable' USB hub, sound, network, graphics adapter SUBSYSTEM=="usb", ATTR{idVendor}=="2230", ATTR{idProduct}=="000[13]", ENV{ID_AUTOSEAT}="1" # qemu (version 2.4+) has a PCI-PCI bridge (-device pci-bridge-seat) to group # devices belonging to one seat. See: # http://git.qemu.org/?p=qemu.git;a=blob;f=docs/multiseat.txt SUBSYSTEM=="pci", ATTR{vendor}=="0x1b36", ATTR{device}=="0x000a", TAG+="seat", ENV{ID_AUTOSEAT}="1" # Mimo 720, with integrated USB hub, displaylink graphics, and e2i # touchscreen. This device carries no proper VID/PID in the USB hub, # but it does carry good ID data in the graphics component, hence we # check it from the parent. There's a bit of a race here however, # given that the child devices might not exist yet at the time this # rule is executed. To work around this we'll trigger the parent from # the child if we notice that the parent wasn't recognized yet. # Match parent SUBSYSTEM=="usb", ATTR{idVendor}=="058f", ATTR{idProduct}=="6254", \ ATTR{%k.2/idVendor}=="17e9", ATTR{%k.2/idProduct}=="401a", ATTR{%k.2/product}=="mimo inc", \ ENV{ID_AUTOSEAT}="1", ENV{ID_AVOID_LOOP}="1" # Match child, look for parent's ID_AVOID_LOOP SUBSYSTEM=="usb", ATTR{idVendor}=="17e9", ATTR{idProduct}=="401a", ATTR{product}=="mimo inc", \ ATTR{../idVendor}=="058f", ATTR{../idProduct}=="6254", \ IMPORT{parent}="ID_AVOID_LOOP" # Match child, retrigger parent SUBSYSTEM=="usb", ATTR{idVendor}=="17e9", ATTR{idProduct}=="401a", ATTR{product}=="mimo inc", \ ATTR{../idVendor}=="058f", ATTR{../idProduct}=="6254", \ ENV{ID_AVOID_LOOP}=="", \ RUN+="/usr/bin/udevadm trigger --parent-match=%p/.." TAG=="seat", ENV{ID_PATH}=="", IMPORT{builtin}="path_id" TAG=="seat", ENV{ID_FOR_SEAT}=="", ENV{ID_PATH_TAG}!="", ENV{ID_FOR_SEAT}="$env{SUBSYSTEM}-$env{ID_PATH_TAG}" SUBSYSTEM=="input", ATTR{name}=="Wiebetech LLC Wiebetech", RUN+="/usr/bin/loginctl lock-sessions" LABEL="seat_end"