1
0
mirror of https://github.com/systemd/systemd.git synced 2024-12-23 21:35:11 +03:00
systemd/rules
Daniel Drake d84071d569 rules: identify internal sound cards on platform bus (#4893)
We have a system which has the HDMI audio capability internally,
but pulseaudio is not giving it a very high priority compared
to e.g. USB sound cards.

The sound device appears on the platform bus and it is not
currently tagged with any form factor information.

It seems safe to assume that any sound card that is directly on the
platform bus is of internal form factor, but we must be careful because
udev rules will match all parent devices, not just the immediate parent,
and you will frequently encounter setups such as:

 Platform bus -> USB host controller -> USB sound card

In that case, SUBSYSTEMS==platform would match even though we're
clearly working with an external USB sound card.

In order to detect true platform devices here, we rely on the observation
that if any parent devices of the sound card are PCI, USB or firewire
devices, then this sound card cannot directly connected to the platform
bus. Otherwise, if we find a parent device on the platform bus, we assume
this is an internal sound card connected directly to the platform bus.
2016-12-15 23:11:11 +01:00
..
.gitignore move imported udev into place 2012-04-04 05:05:07 +02:00
50-udev-default.rules 50-udev-default.rules: don't run anything but REMOVE_CMD on remove 2015-03-27 15:42:04 +01:00
60-block.rules rules: block: add support for pmem devices (#3683) 2016-07-08 17:43:56 +02:00
60-cdrom_id.rules rules: clean up stale CD drive mounts after ejection 2015-01-28 17:04:06 +01:00
60-drm.rules rules: simply 60-drm.rules 2013-11-03 16:17:14 +01:00
60-evdev.rules rules: finish incomplete rename 2015-04-12 10:20:24 -04:00
60-persistent-alsa.rules move imported udev into place 2012-04-04 05:05:07 +02:00
60-persistent-input.rules rules: set ID_BUS for bluetooth, rmi and i8042 2016-07-01 15:19:46 +10:00
60-persistent-storage-tape.rules rules: UDEV_DISABLE_PERSISTENT_STORAGE_RULES_FLAG property (#3714) 2016-07-15 18:47:42 +02:00
60-persistent-storage.rules rules: consider MMC device partitions with partition number > 9 (#4831) 2016-12-06 10:46:13 +01:00
60-persistent-v4l.rules udev: move all unconditionally installed rules to rules/ 2012-04-14 20:10:03 +02:00
60-sensor.rules udev: Add rules for accelerometer orientation quirks 2016-12-10 02:25:11 -05:00
60-serial.rules rules: merge tty and serial rules file 2015-03-12 17:22:19 +01:00
64-btrfs.rules udev: add btrfs support 2012-09-17 13:54:03 +02:00
70-mouse.rules hwdb: add rule and first entry for PS/2 mice 2014-12-24 08:08:23 +10:00
70-touchpad.rules hwdb: add a 70-touchpad.hwdb to tag internal vs external touchpads 2016-07-01 15:25:34 +10:00
75-net-description.rules rules: net, tty description - ask hwdb explicitly for pci data 2013-07-21 16:33:27 +02:00
75-probe_mtd.rules build-sys: make loadable module support optional 2012-11-20 19:35:27 +01:00
78-sound-card.rules rules: identify internal sound cards on platform bus (#4893) 2016-12-15 23:11:11 +01:00
80-drivers.rules rules: drivers - do not reset RUN list 2014-01-03 01:32:03 +01:00
80-net-setup-link.rules udev: import the full db on MOVE events for devices without dev_t 2014-09-09 15:03:49 +02:00
99-systemd.rules.in rules: make sure always set at least one property on rfkill devices 2016-07-20 09:17:57 +02:00
Makefile backlight: add minimal tool to save/restore screen brightness across reboots 2013-08-14 01:57:02 +02:00