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RatSlap aims to provide a way to configure configurable Logitech mice from within Linux. It is licensed under the GNU GPL version 2. For more information, see LICENSE / COPYING .
For a list of authors and contributors, see AUTHORS / CONTRIBUTORS .
For more information on contributing (new feature, bug fix, pull request etc), please see CONTRIBUTING .
The default branch has changed from master to main. If you are building from
source, and have an existing fork/clone, you may need to build this in a clean
directory and/or update your remote tracking branch. Sorry about that.
The key that was called Menu in now called Application (bringing it in line
with the standard USB HID naming scheme. If you have any scripts calling this,
and using Menu, they will need to be updated.
Additionally, there was a bug whereby unrecognised keys would be silently ignored - this is no longer the case, they are now reported as an error.
The most current release is v0.4.1 and is available from:
RatSlap binary and archive should be signed with my GPG key ( 231A 94F4 81EC F212 ).
Binary signature files end in .asc and can be verified using gpg/gpg2 thus:
$ gpg --verify ratslap-0.2.2.x86_64.tar.gz.asc
gpg: assuming signed data in `ratslap-0.2.2.x86_64.tar.gz'
gpg: Signature made 2018-05-01T01:00:52 AEST using RSA key ID 81ECF212
gpg: Good signature from "Krayon (Code Signing Key) <[email protected]>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: CDEC 1051 0874 06FB 8323 46DC 231A 94F4 81EC F212You may first need to retrieve my public key if you haven't already done so:
$ gpg --recv-keys 81ECF212
gpg: keyring `/home/krayon/.gnupg/secring.gpg' created
gpg: requesting key 81ECF212 from hkp server keys.gnupg.net
gpg: /home/krayon/.gnupg/trustdb.gpg: trustdb created
gpg: key 81ECF212: public key "Krayon (Code Signing Key) <[email protected]>" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)RatSlap source is available on GitHub , GitLab and BitBucket with the primary (public) repository being GitHub .
The main changes in the more recent versions is the DPI Support
( Daniel Dawson ) and the new keys:
NonUS#, CapsLock, NonUS\, Application, Power, Num=, F13, F14,
F15, F16, F17, F18, F19, F20, F21, F22, F23, F24, Execute,
Help, Menu, Select, Stop, Again, Undo, Cut, Copy, Paste,
Find, Mute, VolumeUp, VolumeDown,
Num, (Brazillian keypad period (.)?),
AS400Num= (Keypad Equal Sign on AS/400 keyboards),
SysReq (SysReq/Attention), Cancel, Clear, Prior, Return, Separator,
Out, Oper, ClearAgain, CrSelProps, ExSel, Num00, Num000,
Sep1000s (Thousands separator - locale specific?),
SepDec (Decimal separator - locale specific?),
CurrUnit (Currency Unit - locale specific?),
CurrSubUnit (Currency Sub-Unit - locale specific?),
Num(, Num), Num{, Num}, NumTab, NumBackspace, NumA, NumB,
NumC, NumD, NumE, NumF, NumXOR, Num^, Num%, Num<, Num>,
Num&, Num&&, Num|, Num||, Num:, Num#, NumSpace, Num@, Num!,
NumMemStore, NumMemRecall, NumMemClear, NumMemAdd, NumMemSub,
NumMemMul, NumMemDiv, NumPlusMinus, NumClear, NumClearEntry,
NumBinary, NumOctal, NumDecimal, NumHex.
Now a lot of the above keys haven't been tested and in some cases I have NO IDEA what they are :P They come from the USB HID keyboard codes though.
For other features and bug fixes see Version History below.
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: DPICycleOne 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: F3Now, 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: Button11Finally, we can select the F3 mode (if we're not already using it):
$ ./ratslap --select F3
Selecting Mode: F3Another 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: F3When 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/002/090I 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
- v0.2.2
- QB#121 - set_debug is deprecated, use libusb_set_option instead
- Added some documentation: AUTHORS, CONTRIBUTING
- v0.2.3
- v0.3.0 / v0.3.1 / v0.3.2
- v0.4.0
- Documentation fixes
- Fixed recommendations by LGTM ( GitHub #22 )
- v0.4.1
- Add automatic code scanning (CodeQL)
- Renamed default branch:
mastertomain dpishiftfix ( fixes GitHub #23 )
- FEATURE: QB#114 - Factory reset option
- FEATURE: QB#115 - Ability to save/load profiles
- FEATURE: QB#127 - musl build for lean standalone
It seems the key names (and codes) are standard USB HID ones, who knew?! :D
More info at:
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.