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avinal ce8f46553c add new blog on logitech mouse 
Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>
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---
title: Configure Logitech MX Master 3S using LogiOps
date: 2023-09-25T20:47:00
category: blogs
tags: [fedora, mouse, "logid", "logitech", "logiops", "mx-master-3s"]
image: "/images/mouse-building.webp"
description: "I brought Logitech MX Master 3S mouse and it is a great mouse. It
has a lot of features and I am still exploring them. One of the features is to
configure the mouse using LogiOps. LogiOps is a command line tool to configure
Logitech devices on Linux distos."
---
I brought Logitech MX Master 3S mouse, and it is a great mouse. It has a lot of
features, and I am still exploring them. One of the features is to configure the
mouse using LogiOps. LogiOps is a command line tool to configure Logitech
devices on Linux distros, since Logitech provides official tools to configure the
mouse on Windows and macOS.
## Logitech MX Master 3S
Although I use keyboard shortcuts for most of my work, I still use the mouse a
lot. It is usually very helpful to have a good mouse, especially when you have
to scroll thousands of lines of code and documentation. This mouse features a
superfast scroll wheel that can scroll thousands of lines in a second. In total
there are 7 buttons on the mouse. The mouse can be connected to the computer via
Bluetooth or a USB receiver. It can also be connected to multiple devices at the
same time and can be switched between them using a button on the bottom of the
mouse. The mouse can be charged using a USB-C cable, and it can be used while
charging as well. You can see a 3D model of the mouse below. You can rotate the model using your
mouse or touchpad.
<iframe class="aspect-video w-full" title="Logitech MX Master 3 Mouse Black" frameborder="0" allowfullscreen
mozallowfullscreen="true" webkitallowfullscreen="true" allow="autoplay; fullscreen; xr-spatial-tracking"
xr-spatial-tracking execution-while-out-of-viewport execution-while-not-rendered web-share
src="https://sketchfab.com/models/c15eda7cd7874423a8c31d55193b9ff2/embed?ui_theme=dark&dnt=1"> </iframe>
The best part about this mouse is that it is very comfortable to use and highly
customizable. You can customize most of the buttons and even extend the functionality
by adding gestures. You can also customize the scroll wheel and the scroll
direction as well as the DPI and the pointer speed. All this can be done using
LogiOps.
## Installing LogiOps
It is an open source tool with code available on [GitHub](https://github.com/PixlOne/logiops).
This blog post will show you how to install and configure LogiOps on Fedora. The
steps should be similar for other Linux distros and other Logitech mice as well.
You can directly install using `dnf` but for latest version, you can build from
source.
- Install the dependencies.
```bash
sudo dnf install cmake libevdev-devel systemd-devel libconfig-devel gcc-c++ glib2-devel
```
- Clone the repository.
```bash
git clone https://github.com/PixlOne/logiops.git
```
- Build and install.
```bash
cd logiops
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make
sudo make install
```
## Configuring LogiOps
In this blog post I will show you what buttons are available and how you can configure
actions (*keypress* or *gestures*) on them. Let us take a look at all the available buttons.
![Logitech MX Master 3S Buttons](/images/mx-master-3s-buttons.webp)
You can also get a table of available buttons, their CID and available features
by running logid in debug mode.
```bash
sudo logid -d
```
You can get output like this:
```log
[INFO] Device found: MX Master 3S on /dev/hidraw4:255
[DEBUG] /dev/hidraw4:255 remappable buttons:
[DEBUG] CID | reprog? | fn key? | mouse key? | gesture support?
[DEBUG] 0x50 | | | YES |
[DEBUG] 0x51 | | | YES |
[DEBUG] 0x52 | YES | | YES | YES
[DEBUG] 0x53 | YES | | YES | YES
[DEBUG] 0x56 | YES | | YES | YES
[DEBUG] 0xc3 | YES | | YES | YES
[DEBUG] 0xc4 | YES | | YES | YES
[DEBUG] 0xd7 | YES | | | YES
[DEBUG] Thumb wheel detected (0x2150), capabilities:
[DEBUG] timestamp | touch | proximity | single tap
[DEBUG] YES | YES | YES | YES
[DEBUG] Thumb wheel resolution: native (18), diverted (120)
```
You can see thumb wheel has some cool features like touch, proximity and single
tap. Furthermore, you can configure these features in the configuration file. You can also
configure the thumb wheel resolution.
### Create a configuration file
LogiOps uses a configuration file to configure the mouse. By default, the
configuration file is located at `/etc/logid.cfg`. If you cannot
find the file, you can create one. You can copy the default configuration file
and edit it. You can find the default configuration file
[here](https://github.com/PixlOne/logiops/blob/main/logid.example.cfg). You can
read the documentation for the configuration file in [this wiki](https://github.com/PixlOne/logiops/wiki/Configuration).
```bash
sudo touch /etc/logid.cfg
```
You can also pass a custom path for the configuration file using `-c` flag. But
it never worked for me, so I am going to skip this part.
### Understanding the configuration options
You can obviously read the documentation for the configuration file, but I will
focus on easy understanding of the options that will be more than enough for most
users. I will be building the configuration file step by step and finally show
you the complete configuration file.
- Add a device and define its name
```cpp
devices: (
{
name: "MX Master 3S";
}
)
```
- Configure smartshift
```cpp
smartshift:
{
on: true;
threshold: 30;
torque: 50;
}
```
- Configure hires scrolling
```cpp
hiresscroll:
{
hires: true;
invert: false;
target: false;
}
```
- Configure dpi
```cpp
dpi: 2000;
```
Next we will see how to configure the buttons.
#### Buttons
Every button has a CID. You can see the CID of the buttons in the debug output
as well as in the image above. Every remappable button has some actions that can
be configured. You can configure a keypress or a gesture or a combination of
both.
There can be two situations when you configure a button. Either you want to
configure the button for a specific keypress, or you want to configure the button
for a specific gesture. You can also configure the button for both keypress and
gesture. In this case, the keypress will be triggered when you press the button
and the gesture will be triggered when you press the button and move the mouse
in a specific direction. The buttons can also be configured to toggle specific
fetcures of the mouse like smartshift, hires scrolling, etc.
First create a button section for the button you want to configure.
```cpp
buttons: (
{
<first-button>
},
{
<second-button>
}
)
```
- Configure only a keypress, let's configure the wheel button to take screenshot
```cpp
{
cid: 0x52;
action =
{
type: "keypress";
keys: ["KEY_PRINT"]
};
}
```
- Configure the top button to toggle SmartShift
```cpp
{
cid: 0xc4;
action =
{
type: "ToggleSmartShift";
}
}
```
- configure the gesture button for the following (sway based gestures)
- keypress: Opens Terminal
- Up gesture: Snaps current window to top
- Down gesture: Snaps current window to bottom
- Left gesture: Snaps current window to left
- Right gesture: Snaps current window to right
```cpp
{
cid: 0xc3;
action =
{
type: "Gestures";
gestures: (
{
direction: "Up";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_UP"];
};
},
{
direction: "Down";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_DOWN"];
};
},
{
direction: "Left";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_LEFT"];
};
},
{
direction: "Right";
mode: "OnRelease";
action =
{
type: "Keypress";
keys = ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_RIGHT"];
}
},
{
direction: "None"
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_ENTER"];
}
}
);
};
}
```
The keypress while using with gestures is defined as direction **None**. These are
just some examples, you can go through the documentation to see all the available
options.
### Complete configuration file
Here is the complete configuration file that I use.
```cpp
devices: (
{
name: "MX Master 3S";
smartshift:
{
on: true;
threshold: 30;
torque: 50;
};
hiresscroll:
{
hires: true;
invert: false;
target: false;
};
dpi: 2000;
buttons: (
{
cid: 0xc3;
action =
{
type: "Gestures";
gestures: (
{
direction: "Up";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_UP"];
};
},
{
direction: "Down";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_DOWN"];
};
},
{
direction: "Left";
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_LEFT"];
};
},
{
direction: "Right";
mode: "OnRelease";
action =
{
type: "Keypress";
keys = ["KEY_LEFTMETA", "KEY_LEFTSHIFT", "KEY_RIGHT"];
}
},
{
direction: "None"
mode: "OnRelease";
action =
{
type: "Keypress";
keys: ["KEY_LEFTMETA", "KEY_ENTER"];
}
}
);
};
},
{
cid: 0x52;
action =
{
type: "Keypress";
keys: ["KEY_RIGHTCTRL", "KEY_PRINT"]
};
},
{
cid: 0xc4;
action =
{
type: "ToggleSmartshift";
};
}
);
}
);
```
## Post Configuration
Once configured you will need to restart the logid service.
```bash
sudo systemctl restart logid
```
Voila! You have successfully configured your Logitech mouse.
## References
- [LogiOps](https://github.com/PixlOne/logiops)
- [My Configurations](https://gist.github.com/avinal/2acfc0ac2952f4354dd3b4b78b8ccb2b)
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