Dreamcast (Reicast) : GPIO controller do not work on Retropie 4.4

[SuperPiboy]

Hi Retrogamers,

My hardware configuration : RPI 2, PIGRRL 2, RETROPIE 4.4

There is a setting that i don’t understand. I use RETROGAME (Adafruit controller driver), all work fine as GPIO controller except with Dreamcast emulator (Reicast).
I followed the instructions (https://github.com/retropie/retropie-setup/wiki/Dreamcast) but my gpio controller RETROGAME does’nt work.

On the other hand, i can set gpio controller with ./reicast-joyconfig, then a file “opt\retropie\configs\dreamcast\mappings\controller_retrogame.cfg” is created.
I have just one Event named dev/input/event0.
Conversely, if if plug USB snes gamepad or usb gamepad PS3, they ‘re work fine.

I don’t know what to do , i appeal to your help 

Bellow all my settings :

_controller_retrogame.cfg :
[emulator]
mapping_name = retrogame
btn_escape = 57

[dreamcast]
btn_a = 56
btn_b = 44
btn_x = 45
btn_y = 29
btn_start = 28
btn_dpad1_left = 105
btn_dpad1_right = 106
btn_dpad1_up = 103
btn_dpad1_down = 108

[compat]
btn_trigger_left = 30
btn_trigger_right = 31_

emu.cfg :
[audio]
backend = auto
disable = 0

[config]
Debug.SerialConsoleEnabled = 0
Dreamcast.Broadcast = 4
Dreamcast.Cable = 3
Dreamcast.RTC = -2136789165
Dreamcast.Region = 3
Dynarec.Enabled = 1
Dynarec.idleskip = 1
Dynarec.unstable-opt = 0
aica.LimitFPS = 1
aica.NoBatch = 0
aica.NoSound = 0
bios.UseReios = 0
pvr.MaxThreads = 3
pvr.Subdivide = 0
pvr.SynchronousRendering = 0
pvr.rend = 0
rend.UseMipmaps = 1
rend.WideScreen = 0
ta.skip = 0

[dispmanx]
height = 480
maintain_aspect = yes
width = 640

[input]
evdev_device_id_1 = 0
evdev_device_id_2 = 1
evdev_device_id_3 = 0
evdev_device_id_4 = 0
evdev_mapping_1 = /opt/retropie/configs/dreamcast/mappings/controller_retrogame.cfg
evdev_mapping_2 = /opt/retropie/configs/dreamcast/mappings/controller_retrogame.cfg
joystick_device_id = -1

[omx]
audio_hdmi = no
audio_latency = 100

[players]
nb = 1

[reios]
ElfFile =

[testing]
ta.HashCheckFile =
ta.HashLogFile =

[validate]
OpenGlChecks = 0

Thank you for reading me 

[joolswills]

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