pi@retropie:~ $ cat /proc/bus/input/devices
I: Bus=0003 Vendor=2563 Product=0526 Version=0110
N: Name="SHANWAN Android Gamepad"
P: Phys=usb-3f980000.usb-1.3.3/input0
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/0003:2563:0526.0002/input/input1
U: Uniq=
H: Handlers=event0 js0
B: PROP=0
B: EV=1b
B: KEY=7fff0000 0 0 0 0 0 0 0 0 0
B: ABS=30627
B: MSC=10

I: Bus=0003 Vendor=2563 Product=0526 Version=0101
N: Name="SHANWAN Android Gamepad System Control"
P: Phys=usb-3f980000.usb-1.3.3/input1
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.1/0003:2563:0526.0003/input/input2
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=13
B: KEY=c000 100000 0 0 0
B: MSC=10

I: Bus=0003 Vendor=2563 Product=0526 Version=0101
N: Name="SHANWAN Android Gamepad Consumer Control"
P: Phys=usb-3f980000.usb-1.3.3/input1
S: Sysfs=/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.1/0003:2563:0526.0003/input/input3
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=13
B: KEY=10000 2000000 39fa d9411801 c0000 0 0 0
B: MSC=10