Configuring Joystick with Many Axes on Ubuntu
Setting up a joystick with multiple axes on Ubuntu can be a challenging task, especially if you are new to Linux. In this article, we will provide a detailed guide on how to properly configure your joystick, including how to handle common difficulties that may arise during the process.
Identifying the Joystick
The first step in configuring your joystick is to identify it. To do this, open a terminal and run the following command:
ls /dev/input/js*
This command will list all joysticks currently connected to your system. Take note of the device file name (e.g. /dev/input/js0) as you will need it later.
Testing the Joystick
Once you have identified your joystick, you can test it by running the following command:
jstest /dev/input/js0
This command will display the current state of the joystick, including the values of its axes and buttons. You can move the joystick and press its buttons to see the changes in the output.
Configuring the Joystick
To configure your joystick, you will need to edit the /etc/udev/rules.d/51-joystick.rules file. This file contains the configuration for all joysticks on your system.
First, you will need to add a new rule for your joystick. The rule should look like this:
ACTION=="add", SUBSYSTEM=="input", ATTRS{idVendor}=="VKBGNXGNX", ATTRS{idProduct}=="THQadd", MODE="0666", RUN+="/usr/bin/jscal-store %k"
Replace VKBGNXGNX and THQadd with the vendor and product IDs of your joystick, respectively. You can find these IDs by running the lsusb command.
Next, you will need to create a calibration file for your joystick. The calibration file should be located in the /etc/jscal/udev directory and should have the same name as your joystick device file (e.g. js0).
To create the calibration file, run the following command:
jscal-calibrate /dev/input/js0 > /etc/jscal/udev/js0.cal
This command will open a graphical calibration tool that you can use to calibrate your joystick. Once you have finished calibrating your joystick, save the calibration file and restart your system.
Common Difficulties
One common difficulty when configuring a joystick with many axes on Ubuntu is that some axes may not be recognized by the system. To solve this problem, you can try using the jstest command to manually set the axes.
Another common difficulty is that the calibration values may not be accurate. To solve this problem, you can try recalibrating your joystick using the jscal-calibrate command.
- Identify your joystick by running the
ls /dev/input/js*command - Test your joystick by running the
jstest /dev/input/js0command - Configure your joystick by editing the
/etc/udev/rules.d/51-joystick.rulesfile and creating a calibration file in the/etc/jscal/udevdirectory - Solve common difficulties by manually setting axes using the
jstestcommand and recalibrating your joystick using thejscal-calibratecommand