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RatSlap aims to provide a way to configure configurable Logitech mice from within Linux.
RatSlap source is available on GitLab, GitHub and BitBucket with the primary (public) repository being GitLab.
RatSlap binary and archive should be signed with my GPG key ( 231A 94F4 81EC F212 ).
Bugs are tracked on the Quadronyx Bug Tracker.
NOTE: The Logitech G300 and G300s differ only by name and physical appearance, otherwise they are functionally (and USB VID:PID) identical.
The Logitech G300/G300s has 3 button modes, affectionately known as F3, F4 and F5. For each of these modes, you can assign an LED colour, report rate (speed at which the mouse communicates with the computer), DPI setting(s) and button/key combinations.
NOTE: You cannot remap the scrollwheel. These generate button 4 (up) and 5 (down) and cannot be changed.
The default mapping for F3 on the G300/G300s, for example, is currently:
$ ratslap -pf3 Printing Mode: F3 Colour: cyan Report Rate: 500 DPI #1: 500 DPI #2: (DEF) 1000 DPI #3: 1500 DPI #4: 2500 DPI Shift: NOT SET Left Click (But1): Button1 Right Click (But2): Button2 Middle Click (But3): Button3 G4: Button6 G5: Button7 G6: LeftCtrl + G7: LeftAlt + G8: ModeSwitch G9: DPICycle
One usage for RatSlap may be to remap the buttons to generate standard mouse buttons higher than the 1-3 + scrollwheel (4 and 5).
Above, we see a typical button 1/2/3 configuration for left, right and middle respectively. We can also see the G4 button generates mouse button 6 and G5 generates mouse button 7. Unfortunately, G6-G9 do not generate the desired extra
We can rectify this easily, using RatSlap:
$ ratslap --modify F3 --colour Magenta --G6 Button8 --G7 Button9 --G8 Button10 --G9 Button11 Modifying Mode: F3 Setting colour: magenta Setting button 6: Button8 Setting button 7: Button9 Setting button 8: Button10 Setting button 9: Button11 Saving Mode: F3
Now, we have all mouse buttons functioning as mouse buttons! Go figure! And as an added bonus, we have a nice Magenta glow.
$ ./ratslap --print F3 Printing Mode: F3 Colour: magenta Report Rate: 500 DPI #1: 500 DPI #2: (DEF) 1000 DPI #3: 1500 DPI #4: 2500 DPI Shift: NOT SET Left Click (But1): Button1 Right Click (But2): Button2 Middle Click (But3): Button3 G4: Button6 G5: Button7 G6: Button8 G7: Button9 G8: Button10 G9: Button11
Finally, we can select the F3 mode (if we're not already using it):
$ ./ratslap --select F3 Selecting Mode: F3
Another option might be using the buttons behind the wheel (G8 and G9) to switch forward and backward (respectively) between tabs in your favourite browser ... or Firefox.
So, let's set the buttons to Control-TAB and Control-Shift-TAB, print out our config, then switch to that mode:
$ ratslap --modify F3 --G8 LeftCtrl+TAB --G9 LeftCtrl+LeftShift+TAB --print F3 --select F3 Modifying Mode: F3 Setting button 8: LeftCtrl+TAB Setting button 9: LeftCtrl+LeftShift+TAB Saving Mode: F3 Printing Mode: F3 Colour: magenta Report Rate: 250 DPI #1: 500 DPI #2: (DEF) 1000 DPI #3: 1500 DPI #4: 2500 DPI Shift: NOT SET Left Click (But1): Button1 Right Click (But2): Button2 Middle Click (But3): Button3 G4: Button6 G5: Button7 G6: Button8 G7: Button9 G8: LeftCtrl + Tab G9: LeftCtrl + LeftShift + Tab Selecting Mode: F3
When you try to run RatSlap, you may receive an error similar to the following:
libusbx: error [_get_usbfs_fd] libusbx couldn't open USB device /dev/bus/usb/002/090: Permission denied libusbx: error [_get_usbfs_fd] libusbx requires write access to USB device nodes. 20161115T002046+1100 [E] main.c:00581:mouse_init Failed to find Logitech G300s (046d:c246)
This is caused, as the error suggests, by the fact that you do not have write access to the mouse (/dev/bus/usb/002/090 in the example above).
There are two possible ways around this issue:
- (NOT RECOMMENDED) Run ratslap as root;
- Grant permissions to the device for your user account.
The later is the preferred option here. To do this, simply ensure you have write permissions to the device. One such way is to make it group-writable, change the group ownership and place yourself in the newly owning group, eg:
$ ls -lah /dev/bus/usb/002/090 crw-r--r-- 1 root root 189, 217 2016-11-14 19:22 /dev/bus/usb/002/090 $ groups adm dialout cdrom sudo audio dip video plugdev netdev fuse lpadmin scanner sambashare vboxsf vboxusers nonet $ sudo chgrp adm /dev/bus/usb/002/090 [sudo] password for krayon: $ sudo chmod g+w /dev/bus/usb/002/090
I recently (October 2016) purchased a Logitech G300S due mainly to the many extra buttons. I didn't care that the software didn't support Linux as I only wanted the extra buttons to generate extra mouse buttons, not keys or anything fancy.
Unfortunately, when I plugged it in, I discovered that none of the default 3 modes generated the extra mouse buttons I desired, instead generating useless and annoying keypress events such as CTRL-C, CTRL-X and CTRL-V.
Worse still, I also discovered that the Windows software only allows you to assign mouse buttons 1 through 7, skipping 4 and 5 (scroll-wheel). These are Left-Click (1), Middle-Click (2), Right-Click (3), Browser Back (6) and Browser Forward (7) respectively! Therefore, Logitech provides no way of generating higher mouse button events, button 8 for example. --Hopefully this is a limitation in the Logitech software and not in the mouse itself-- (see Notes).
- Configure the mouse options, same as the Logitech Windows only software.
- Bind all buttons, except the scroll wheel up and down, a total of 9 (Logitech tool only allows 5).
- Assign mouse clicks or keys to the Left and Right buttons (which the Logitech tool cannot do).
- Freely assign 'Mode Switch' to a mouse button in only one mode/profile.
- Assign mouse clicks with key modifiers (which Logitech doesn't offer).
- v0.1.0
- First version, ability to select mode
- v0.1.1
- Hotfix for GCC 5 compatibility
- Print current mode's mapping ( accidental check-in, oops :S )
- v0.2.0
- v0.2.1
- QB#111 - missing libusb_strerror function
- QB#117 - Compile fails when ctags missing
- Prettier Changelog
- Added man page
- QB#113 - Configure DPI #[1-4], DPI Default and * DPI Shift values
- QB#114 - Factory reset option
- QB#115 - Ability to save/load profiles
https://julien.danjou.info/blog/2012/logitech-k750-linux-support shows a technique for sniffing USB traffic using the usbmon kernel module.
Unfortunately it looks like I'll need to create a Windows VM to run the Logitech software on :(
After considerable testing, I have found some operations the hardware supports that Logitech's management software does not.
Firstly, I can confirm that we can actually set 9 mouse buttons (1, 2, 3, 6, 7, 8, 9, 10 and 11). This is good news as it was what I originally expected from the Logitech G300s in the first place :D
We can also re-assign left and right buttons to different keys/buttons. Logitech's software did not allow this, presumably to avoid accidentally removing your ability to actually "left-click" anything :P
Once you assigned the 'Mode Switch' to a button in one profile/mode, it was also set in the other profiles/modes. This is presumably so you can always change to another mode. We shall impose no such limitation.
Lastly, and perhaps rather attractively, we can assign mouse buttons to perform mouse clicks WITH modifiers! You can therefore bind Ctrl+Shift+Right-Click to the left mouse button if you so desire.
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