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A configuration script for Logitech M720 that remaps mouse buttons (Linux)

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Logitech M720 Button Configuration for Linux

This script can be used to configure mouse button mappings of a Logitech M720 mouse temporary.

The configuration is done via the HID++ protocol described in these documents:

This script is created for personal use only and may or may not work for your device. Use at your own risk.

How to Use

Installation

Clone the repository and install this package with pip:

$ pip install --user -e /path/to/logitech-m720-config

This installs m720-config to ~/.local/bin.

Troubleshooting

On ubuntu the above installation might fail due to a different PYTHONPATH configuration. You may use the following workaround (use with caution, it is a hack!)

$ sudo apt-get install python3-pip
$ cd path-to-this-repo
$ PYTHONPATH="./lib" pip3 install --user -e .
$ pip3 install --user pyudev
$ ~/.local/bin/m720-config

Run the script

This script will map Button 8 on the thumb button by default.

Run in a terminal:

$ m720-config

Make sure ~/.local/bin is in your PATH variable

Create your own configuration

Tweak the source code in m720_config/__init__.py to adjust the configuration. Specifically, the remapping is done in line 156 of __init__.py.

So, how does it work?

When running m720-config you get a CID INFO printed to the terminal which looks like this:

### CID INFO ###
  CID    TID  virtual persist divert reprog fntog hotkey fkey  mouse pos group gmask      rawXY
0x0050 0x0038 False   False   False  True   False False  False True  0   1     0b00000001 False
0x0051 0x0039 False   False   False  True   False False  False True  0   1     0b00000001 False
0x0052 0x003A False   True    True   True   False False  False True  0   2     0b00000011 True 
0x0053 0x003C False   True    True   True   False False  False True  0   2     0b00000011 True 
0x0056 0x003E False   True    True   True   False False  False True  0   2     0b00000011 True 
0x005B 0x003F False   True    True   True   False False  False True  0   2     0b00000011 True 
0x005D 0x0040 False   True    True   True   False False  False True  0   2     0b00000011 True 
0x00D0 0x00AD False   True    True   True   False False  False True  0   2     0b00000011 True 
0x00D7 0x00B4 True    False   True   False  False False  False False 0   3     0b00000000 True 

A CID is a control-ID which identifies a mouse button. To remap a button to another button, you first have to get the control-ID of the button you aim to remap (e.g. the thumb button with CID 0xD0) and the control-ID of the button you aim to imitate (e.g. button 8 with CID 0x53). To map CID 0xD0 to 0x53 you now have to create a CID reporting.

buttons.set_cid_reporting (0xD0, False, False, True, True, False, False, 0x53)

If you just want to remap your mouse buttons, leave the other parameters as is. You can find documentation on what the other parameters are controlling here.

Button CID mapping

CID Button
0x50
0x51
0x52
0x53
0x56
0x5B
0x5D
0xD0
0xD7 unknown

Check your configuration

Use xev | grep button to monitor your changes to your mouse button mapping.

How to Get Gestures On Linux?

You can use Easystroke to add gesture support to your mouse. Use the thumb button as your gesture button and the behavior should be similar to that created by Logitech Options.

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