Files
libratbag/README.md
Peter Hutterer 53ff42ea55 README: remove the compilation instructions for systemd
By now you should have 229.

And replace the instructions with actual ratbagd build instructions.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-04-25 08:26:14 +02:00

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ratbagd
=======
ratbagd is a system daemon to introspect and modify configurable mice.
ratbagd uses libratbag to access mice and exports the features over a DBus
API to unprivileged proceses. ratbagd needs permissions to access device
nodes (primarily /dev/hidraw nodes) and usually needs to run as root.
ratbagd is a relatively thin wrapper arond libratbag. If a device is not
detected or does not function as expected, the issue is usually in
libratbag. libratbag can be found at
https://github.com/libratbag/libratbag
The DBus-Interface
------------------
Note: **the DBus interface is subject to change**
Interfaces:
- org.freedesktop.ratbag1.Manager
- org.freedesktop.ratbag1.Device
- org.freedesktop.ratbag1.Profile
- org.freedesktop.ratbag1.Resolution
- org.freedesktop.ratbag1.Button
The **org.freedesktop.ratbag1.Manager** interface provides:
- Properties:
- Devices -> array of object paths with interface Device
- Signals:
- DeviceNew -> new device available, carries object path
- DeviceRemoved -> device removed, carries object path
The **org.freedesktop.ratbag1.Device** interface provides:
- Properties:
- Id -> unique ID of this device
- Capabilities -> array of uints with the capabilities enum from libratbag
- Description -> device name
- Svg -> device SVG name (file only)
- SvgPath -> device SVG name (full absolute path)
- Profiles -> array of object paths with interface Profile
- ActiveProfile -> index of the currently active profile in Profiles
- Methods:
- GetProfileByIndex(uint) -> returns the object path for the given index
The **org.freedesktop.ratbag1.Profile** interface provides:
- Properties:
- Index -> index of the profile
- Resolutions -> array of object paths with interface Resolution
- Buttons -> array of object paths with interface Button
- ActiveResolution -> index of the currently active resolution in Resolutions
- DefaultResolution -> index of the default resolution in Resolutions
- Methods:
- SetActive(void) -> set this profile to be the active profile
- GetResolutionByIndex(uint) -> returns the object path for the given index
The **org.freedesktop.ratbag1.Resolution** interface provides:
- Properties:
- Index -> index of the resolution
- Capabilities -> array of uints with the capabilities enum from libratbag
- XResolution -> uint for the x resolution assigned to this entry
- YResolution -> uint for the y resolution assigned to this entry
- ReportRate -> uint for the report rate in Hz assigned to this entry
- Methods:
- SetResolution(uint, uint) -> x/y resolution to assign
- SetReportRate(uint) -> uint for the report rate to assign
The **org.freedesktop.ratbag1.Button** interface provides:
- Properties:
- Index -> index of the button
- Type -> string describing the button type
- ButtonMapping -> uint of the current button mapping (if mapping to button)
- SpecialMapping -> string of the current special mapping (if mapped to special)
- KeyMapping -> array of uints, first entry is the keycode, other entries, if any, are modifiers (if mapped to key)
- ActionType -> string describing the action type of the button ("none", "button", "key", "special", "macro", "unknown"). This decides which *Mapping property has a value
- ActionTypes -> array of strings, possible values for ActionType
- Methods:
- SetButtonMapping(uint) -> set the button mapping to the given button
- SetSpecialMapping(string) -> set the button mapping to the given special entry
- SetKeyMapping(uint[]) -> set the key mapping, first entry is the keycode, other entries, if any, are modifier keycodes
- Disable(void) -> disable this button
For easier debugging, objects paths are constructed from the device. e.g.
`/org/freedesktop/ratbag/button/event5/p0/b10` is the button interface for
button 10 on profile 0 on event5. The naming is subject to change. Do not
rely on a constructed object path in your application.
Running ratbagd
---------------
ratbagd is intended to run as dbus-activated systemd service. This requires
installation of the following files:
sudo cp dbus/org.freedesktop.ratbag1.conf /etc/dbus-1/system.d/org.freedesktop.ratbag1.conf
sudo cp dbus/org.freedesktop.ratbag1.service /etc/dbus-1/systemd-services/org.freedesktop.ratbag1.conf
sudo cp ratbagd.service /etc/systemd/system/ratbagd.service
The files are installed into the prefix by make install, see also the
configure switches ---with-systemd-unit-dir and --with-dbus-root-dir.
Developers are encouraged to simply symlink to the files in the git
repository.
For the files to take effect, you should run
sudo systemctl daemon-reload
sudo systemctl reload dbus.service
And finally, to enable the service:
sudo systemctl enable ratbagd.service
This places the required symlink into the systemd directory so that dbus
activation is possible.
Compiling ratbagd
-----------------
./autogen.sh && ./configure --prefix=/usr/ --libdir=/usr/lib64
make
sudo make install
Depending on your distribution, you can omit the --libdir argument. Fedora
and related require it, Debian and related do not.
License
-------
ratbagd is licensed under the MIT license.
> Permission is hereby granted, free of charge, to any person obtaining a
> copy of this software and associated documentation files (the "Software"),
> to deal in the Software without restriction, including without limitation
> the rights to use, copy, modify, merge, publish, distribute, sublicense,
> and/or sell copies of the Software, and to permit persons to whom the
> Software is furnished to do so, subject to the following conditions: [...]