Hi,
you could try with sudo evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0: Logitech K540/K545
/dev/input/event1: Logitech M510
/dev/input/event2: Generic USB Audio Consumer Control
/dev/input/event3: Generic USB Audio
/dev/input/event4: MSI MYSTIC LIGHT
/dev/input/event5: Power Button
/dev/input/event6: Power Button
/dev/input/event7: PC Speaker
/dev/input/event8: HDA ATI HDMI HDMI/DP,pcm=3
/dev/input/event9: HDA ATI HDMI HDMI/DP,pcm=7
/dev/input/event10: HDA ATI HDMI HDMI/DP,pcm=8
/dev/input/event11: HDA ATI HDMI HDMI/DP,pcm=9
/dev/input/event12: HDA ATI HDMI HDMI/DP,pcm=10
Select the device event number [0-12]: 0
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x46d product 0x4076 version 0x111
Input device name: "Logitech K540/K545"
Testing ... (interrupt to exit)
Event: time 1650980111.940440, type 17 (EV_LED), code 0 (LED_NUML), value 0
Event: time 1650980111.940440, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70028
Event: time 1650980111.940440, type 1 (EV_KEY), code 28 (KEY_ENTER), value 0
Event: time 1650980111.940440, -------------- SYN_REPORT ------------
Event: time 1650980115.204108, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1650980115.204108, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 1
Event: time 1650980115.204108, -------------- SYN_REPORT ------------
Event: time 1650980115.372100, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1650980115.372100, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 0
Event: time 1650980115.372100, -------------- SYN_REPORT ------------
Event: time 1650980119.741677, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70057
Event: time 1650980119.741677, type 1 (EV_KEY), code 78 (KEY_KPPLUS), value 1
Event: time 1650980119.741677, -------------- SYN_REPORT ------------
+Event: time 1650980119.827671, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70057
Event: time 1650980119.827671, type 1 (EV_KEY), code 78 (KEY_KPPLUS), value 0
Event: time 1650980119.827671, -------------- SYN_REPORT ------------
Event: time 1650980127.310971, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1650980127.310971, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 1
Event: time 1650980127.310971, -------------- SYN_REPORT ------------
Event: time 1650980127.578685, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 2
Event: time 1650980127.578685, -------------- SYN_REPORT ------------
Event: time 1650980127.618684, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 2
Event: time 1650980127.618684, -------------- SYN_REPORT ------------
Event: time 1650980127.658684, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 2
Event: time 1650980127.658684, -------------- SYN_REPORT ------------
Event: time 1650980127.698686, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 2
Event: time 1650980127.698686, -------------- SYN_REPORT ------------
-Event: time 1650980334.123792, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70056
Event: time 1650980334.123792, type 1 (EV_KEY), code 74 (KEY_KPMINUS), value 0
Event: time 1650980334.123792, -------------- SYN_REPORT ------------