For those who want to play the n64 injected gc games with the original n64 controller, here is the configuration for the mayflash usb adapter.
N64 ADAPTER MAYFLASH]
VID=0E8F
PID=3013
Polltype=1
DPAD=0
DigitalLR=1
MultiIn=1
MultiInValue=01
Power=0,80
A=5,20
B=5,40
X=0,80
Y=0,80
Z=6,10
L=6,04...