LogiOps configuration for MX Master 3

logid.cfg

devices: (
{
    name: "Wireless Mouse MX Master 3";
    smartshift:
    {
        on: true;
        threshold: 10;
        torque: 50;
    };
    hiresscroll:
    {
        hires: true;
        invert: false;
        target: false;
    };
    dpi: 1000;

    buttons: (
        {
            cid: 0xc3;
            action =
            {
                type: "Gestures";
                gestures: (
                    {
                        direction: "Up";
                        mode: "OnRelease";
                        action =
                        {
                            type: "Keypress";
                            keys: ["KEY_UP"];
                        };
                    },
                    {
                        direction: "Down";
                        mode: "OnRelease";
                        action =
                        {
                            type: "Keypress";
                            keys: ["KEY_DOWN"];
                        };
                    },
                    {
                        direction: "Left";
                        mode: "OnRelease";
                        action =
                        {
                            type: "CycleDPI";
                            dpis: [400, 600, 800, 1000, 1200, 1400, 1600];
                        };
                    },
                    {
                        direction: "Right";
                        mode: "OnRelease";
                        action =
                        {
                            type = "ToggleSmartshift";
                        }
                    },
                    {
                        direction: "None";
                        mode: "OnRelease";
                        action = {
                        	type: "Keypress";
                        	keys: ["KEY_LEFTMETA", "KEY_TAB"]; # e.g. Super+Tab
                        }
                    }
                );
            };
        },
        {
            # Forward button (CID 0x56) — mapped to Ctrl+W (close window/tab)
            cid: 0x56;
            action = {
            	type: "Keypress";
            	keys: ["KEY_LEFTCTRL", "KEY_W"];
            };
        },
        {
        	# Back button (CID 0x53) - mapped to Ctrl+Shift+T (reopen tab)			    	
			cid: 0x53;
			action = {
				type: "Keypress";
				keys: ["KEY_LEFTCTRL", "KEY_LEFTSHIFT", "KEY_T"];
			};
        },       
        {
        	# SmartShift button (CID 0xc4) - mapped to Print Screen
			cid: 0xc4;
			action = {
				type: "Keypress";
				keys: ["KEY_SYSRQ"];
			};
        }
    );
}
);

Configuration

Logid uses a standard libconfig-style config file stored in /etc/logid.cfg by default (although you launch logid with the -c option to change it).

The config style may change in the future, however backwards-compatibility will be maintained.

For a sample config, see logid.example.cfg.

: and = are used for defining variables and are interchangeable. (e.g. name: "foo"; is the same as name = "foo";)

Ubuntu Manpage: logiops - configuration utility for Logitech input devices