pi@retropie:~ $ cat /proc/bus/input/devices
I: Bus=0003 Vendor=d209 Product=0410 Version=0111
N: Name="Ultimarc I-PAC Ultimarc I-PAC"
P: Phys=usb-3f980000.usb-1.2/input0
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:D209:0410.0001/input/input0
U: Uniq=8
H: Handlers=sysrq kbd leds event0
B: PROP=0
B: EV=120013
B: KEY=e080ffdf 1cfffff ffffffff fffffffe
B: MSC=10
B: LED=1f

I: Bus=0003 Vendor=d209 Product=0410 Version=0111
N: Name="Ultimarc I-PAC Ultimarc I-PAC"
P: Phys=usb-3f980000.usb-1.2/input1
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/0003:D209:0410.0002/input/input1
U: Uniq=8
H: Handlers=mouse0 event1
B: PROP=0
B: EV=17
B: KEY=70000 0 0 0 0 0 0 0 0
B: REL=3
B: MSC=10

I: Bus=0003 Vendor=d209 Product=0410 Version=0111
N: Name="Ultimarc I-PAC Ultimarc I-PAC"
P: Phys=usb-3f980000.usb-1.2/input2
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.2/0003:D209:0410.0003/input/input2
U: Uniq=8
H: Handlers=kbd leds event2
B: PROP=0
B: EV=20013
B: KEY=ffffffff 80000000 0 7a c000 1e0000 0 0 0
B: MSC=10
B: LED=ff00

I: Bus=0003 Vendor=0079 Product=0006 Version=0110
N: Name="Generic   USB  Joystick  "
P: Phys=usb-3f980000.usb-1.3/input0
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:0079:0006.0004/input/input3
U: Uniq=
H: Handlers=event3 js0
B: PROP=0
B: EV=1b
B: KEY=fff 0 0 0 0 0 0 0 0 0
B: ABS=3002f
B: MSC=10