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andrhua

Member

Registered: 2019-10-23

Posts: 17

Remapping keycodes not working for laptop keyboard

I have a config swapping Caps Lock and Backspace at

/etc/udev/hwdb.d/61-keyboard.hwdb

, which works nicely for external Ducky keyboard, but not for Dell Inspiron 7567 own keyboard.

// laptop keyboard
evdev:input:b0011v0001p0001eab41*
 KEYBOARD_KEY_3a=backspace
 KEYBOARD_KEY_0e=capslock

// external keyboard
evdev:input:b0003v0416p0123e0110*
 KEYBOARD_KEY_70039=backspace
 KEYBOARD_KEY_7002a=capslock

evtest for device 4 at least responds to laptop keyboard press events:

/dev/input/event0:	Lid Switch
/dev/input/event1:	Power Button
/dev/input/event2:	Sleep Button
/dev/input/event3:	Power Button
/dev/input/event4:	AT Translated Set 2 keyboard
/dev/input/event5:	Intel HID events
/dev/input/event6:	PC Speaker
/dev/input/event7:	Dell WMI hotkeys
/dev/input/event8:	C-Media Electronics Inc. Bloody Gaming Audio Device Consumer Control
/dev/input/event9:	COMPANY  USB Device
/dev/input/event10:	COMPANY  USB Device
/dev/input/event11:	COMPANY  USB Device  Keyboard // tried this as well, no success
/dev/input/event12:	COMPANY  USB Device  System Control
/dev/input/event13:	COMPANY  USB Device  Consumer Control
/dev/input/event14:	COMPANY  USB Device
/dev/input/event15:	DLL0797:01 06CB:7E92 Mouse
/dev/input/event16:	DLL0797:01 06CB:7E92 Touchpad
/dev/input/event17:	Video Bus
/dev/input/event18:	Video Bus
/dev/input/event19:	HDA Digital PCBeep
/dev/input/event20:	HDA Intel PCH Headphone Mic
/dev/input/event21:	HDA Intel PCH HDMI/DP,pcm=3
/dev/input/event22:	HDA Intel PCH HDMI/DP,pcm=7
/dev/input/event23:	HDA Intel PCH HDMI/DP,pcm=8
/dev/input/event24:	HDA Intel PCH HDMI/DP,pcm=9
/dev/input/event25:	HDA Intel PCH HDMI/DP,pcm=10
/dev/input/event26:	Integrated_Webcam_HD: Integrate

$ grep "" /sys/class/input/event4/device/id/*
/sys/class/input/event4/device/id/bustype:0011
/sys/class/input/event4/device/id/product:0001
/sys/class/input/event4/device/id/vendor:0001
/sys/class/input/event4/device/id/version:ab41

Last edited by andrhua (2020-09-26 16:08:55)

euromatlox

Member

Registered: 2017-02-10

Posts: 110

Re: Remapping keycodes not working for laptop keyboard

Have you tried reloading the udev rules after boot completed ?
Not a (good) solution, but if then functions okay, surely helps a bit.
I guess you could also try bigger number than 61 for that rule.

Last edited by euromatlox (2020-09-26 19:33:44)