Logitech M535 in Linux
I just bought a Logitech M535 Bluetooth mouse. It has tilting wheel but it's mapped to "back" and "forward" buttons. To get it work as horizontal scrolling I wrote this script:
#! /bin/dash
MOUSE_ID=`xinput list | grep -o 'M535.*pointer' | sed 's/^.*id=\([0-9]*\)[\t].*$/\1/')`
xinput set-button-map $MOUSE_ID 1 2 3 4 5 8 9 6 7 10 11 12
Unfortunately, in this way, scolling buttons are not repeating.
Moreover the mouse also has an extra button, which sends ALT+TAB (through a "fake" keyboard):
ignazio@ignazio-HP:~$ xinput | grep M535
⎜ ↳ Bluetooth Mouse M336/M337/M535 id=15 [slave pointer (2)]
↳ Bluetooth Mouse M336/M337/M535 id=16 [slave keyboard (3)]
ignazio@ignazio-HP:~$ xinput test 16
key press 64
key press 23
key release 23
key release 64
How can I bind this button to something other?
I tried to use xbindkeys
but could not make it intercept ALT+TAB. Moreover, even if I could, I want to only intercept from the fake keyboard from the mouse, and I couldn't find any way to filter devices in xbindkeys
.
I also know there are kernel modules for similar Logitech mouses (see https://github.com/CzBiX/logitech-m560), but this one is not supported.
I solved the horizontal scrolling by using key-mapper gui software, and then mapping the left wheel button (BUTTON SIDE) to wheel(right,1); and the right wheel button to wheel(left,1).
I solved using hwdb. I created /etc/udev/hwdb.d/10-m535.hwdb
:
evdev:input:b0005v046DpB016e1203-*
KEYBOARD_KEY_700e2=reserved
KEYBOARD_KEY_7002b=leftmeta
Then:
sudo udevadm hwdb --update
sudo udevadm trigger
And turn off and on the mouse. It works now, I bound the meta (Windows) key.
I think this solution could be made so the xinput set-button-map
is not required (and maybe I can solve the problem that buttons arr not repeating)... But I couldn't find the keycodes for buttons 6 and 7 (scroll left and right). I found the scancodes:
evdev:input:b0005v046DpB016e1203-*
KEYBOARD_KEY_700e2=reserved
KEYBOARD_KEY_7002b=leftmeta
KEYBOARD_KEY_90004=??? (scroll left - mouse button 6)
KEYBOARD_KEY_90005=??? (scroll right - mouse button 7)
I tried the decimal values for BTN_SIDE
, BTN_EXTRA
, BTN_BACK
, BTN_FORWARD
, BTN_6
, BTN_7
(as defined in /usr/include/linux/input-event-codes.h
) with no luck.
Another mouse, with horizontal scrolling working out-of-the-box has the following evtest
output:
Event: time 1522616506.145899, -------------- SYN_REPORT ------------
Event: time 1522616507.105926, type 2 (EV_REL), code 6 (REL_HWHEEL), value 1
Event: time 1522616507.105926, -------------- SYN_REPORT ------------
Event: time 1522616508.191962, type 2 (EV_REL), code 6 (REL_HWHEEL), value -1
Can I somehow specify an EV_REL
event with value for keycode in hwdb file?