Probe #2fde637fe7 of Lenovo ThinkPad T420s 4174C...
Log: input/devices
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0
B: PROP=0
B: EV=21
B: SW=1
I: Bus=0019 Vendor=0000 Product=0003 Version=0000
N: Name="Sleep Button"
P: Phys=PNP0C0E/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=4000 0 0
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=3
B: KEY=10000000000000 0
I: Bus=0003 Vendor=047f Product=02ee Version=0111
N: Name="Plantronics Poly BT600"
P: Phys=usb-0000:00:1d.0-1.2.2/input3
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.2/2-1.2.2:1.3/0003:047F:02EE.0001/input/input3
U: Uniq=917fa6c8c63d4ba997f6a6aa36d3ad1f
H: Handlers=kbd event3
B: PROP=0
B: EV=13
B: KEY=18000 17800000000 8e000000000000 0
B: MSC=10
I: Bus=0011 Vendor=0001 Product=0001 Version=ab54
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input4
U: Uniq=
H: Handlers=sysrq kbd leds event4
B: PROP=0
B: EV=120013
B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7
I: Bus=0003 Vendor=046d Product=404d Version=0111
N: Name="Logitech K400 Plus"
P: Phys=usb-0000:00:1d.0-1.2.3/input2:1
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.3/2-1.2.3:1.2/0003:046D:C52B.0004/0003:046D:404D.0006/input/input16
U: Uniq=404d-06-2d-8a-bd
H: Handlers=sysrq kbd leds event5 mouse0
B: PROP=0
B: EV=12001f
B: KEY=3f000307ff 0 0 483ffff17aff32d bfd4444600000000 ffff0001 130ff38b17d007 ffff7bfad941dfff ffbeffdfffefffff fffffffffffffffe
B: REL=1943
B: ABS=100000000
B: MSC=10
B: LED=1f
I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:09/LNXVIDEO:01/input/input17
U: Uniq=
H: Handlers=kbd event6
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0
I: Bus=0010 Vendor=001f Product=0001 Version=0100
N: Name="PC Speaker"
P: Phys=isa0061/input0
S: Sysfs=/devices/platform/pcspkr/input/input18
U: Uniq=
H: Handlers=kbd event7
B: PROP=0
B: EV=40001
B: SND=6
I: Bus=0019 Vendor=17aa Product=5054 Version=4101
N: Name="ThinkPad Extra Buttons"
P: Phys=thinkpad_acpi/input0
S: Sysfs=/devices/platform/thinkpad_acpi/input/input19
U: Uniq=
H: Handlers=kbd event8 rfkill
B: PROP=0
B: EV=33
B: KEY=10040 0 18040000 0 50000000000000 0 1701b87102404 c000280051315000 10e000000000000 0
B: MSC=10
B: SW=8
I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input20
U: Uniq=
H: Handlers=event9 mouse1
B: PROP=9
B: EV=b
B: KEY=6420 30000 0 0 0 0
B: ABS=260800011000003
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA NVidia HDMI/DP,pcm=3"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input22
U: Uniq=
H: Handlers=event10
B: PROP=0
B: EV=21
B: SW=140
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA NVidia HDMI/DP,pcm=7"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input23
U: Uniq=
H: Handlers=event11
B: PROP=0
B: EV=21
B: SW=140
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input24
U: Uniq=
H: Handlers=event12
B: PROP=0
B: EV=21
B: SW=10
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Dock Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input25
U: Uniq=
H: Handlers=event13
B: PROP=0
B: EV=21
B: SW=10
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Dock Headphone"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input26
U: Uniq=
H: Handlers=event14
B: PROP=0
B: EV=21
B: SW=4
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Headphone"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input27
U: Uniq=
H: Handlers=event15
B: PROP=0
B: EV=21
B: SW=4
I: Bus=0003 Vendor=04f2 Product=b221 Version=0752
N: Name="Integrated Camera: Integrated C"
P: Phys=usb-0000:00:1a.0-1.6/button
S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input28
U: Uniq=
H: Handlers=kbd event16
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0