root@debian:~# lsusb
Bus 001 Device 002: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 1b1c:1b3e Corsair Corsair Gaming SCIMITAR PRO RGB Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
root@debian:~# dmesg | egrep -i "i8042|serio|input|touchpad|mouse"
[ 3.592862] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:MSE0] at 0x60,0x64 irq 1,12
[ 3.609132] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 3.609141] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 3.609355] mousedev: PS/2 mouse device common for all mice
[ 3.629152] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
[ 3.999720] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input2
[ 4.007985] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input3
[ 4.008146] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0D:00/input/input4
[ 4.008270] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input5
[ 4.171153] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:00/LNXVIDEO:00/input/input6
[ 5.925672] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input7
[ 16.397463] input: PC Speaker as /devices/platform/pcspkr/input/input8
[ 19.394496] input: Video WebCam: Video WebCam as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input9
[ 19.454859] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 19.488512] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/sound/card0/input10
[ 19.488637] input: HDA ATI SB Mic as /devices/pci0000:00/0000:00:14.2/sound/card0/input11
[ 19.488729] input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card0/input12
[ 74.468141] rfkill: input handler disabled
[ 90.216751] rfkill: input handler enabled
[ 101.447483] rfkill: input handler disabled
[ 118.129556] usb 2-1: Product: Corsair Gaming SCIMITAR PRO RGB Mouse
[ 123.735505] input: Corsair Corsair Gaming SCIMITAR PRO RGB Mouse as /devices/pci0000:00/0000:00:12.0/usb2/2-1/2-1:1.0/0003:1B1C:1B3E.0001/input/input13
[ 123.743923] corsair 0003:1B1C:1B3E.0001: input,hiddev0,hidraw0: USB HID v1.11 Mouse [Corsair Corsair Gaming SCIMITAR PRO RGB Mouse] on usb-0000:00:12.0-1/input0
[ 123.745512] corsair 0003:1B1C:1B3E.0002: hiddev1,hidraw1: USB HID v1.11 Device [Corsair Corsair Gaming SCIMITAR PRO RGB Mouse] on usb-0000:00:12.0-1/input1