Hello. I am also encountering the same issue. When Emulation Station starts, a message is displayed that 2 controllers were found. However, no button pressing is registered. The button on the GPIO adapter is also not registering. My RPI2 is rev1.1. I am using a v1.2 GPIO adapter. Any assistance/advice is greatly appreciated.
Also, below is my “snesdev.cfg” contents.
—snesdev.cfg—
# Configuration file for SNESDev, the driver for the RetroPie GPIO Adapter.
# Revision of RetroPie GPIO Adapter. Options: “1x”, “2x”
adapter_version=1x
# button enabled? Options: 0 (disabled), 1 (enabled)
button_enabled=1
# game pad 1 enabled? Options: 0 (disabled), 1 (enabled)
gamepad1_enabled=1
# gamepad 1 type. Options: “nes”, “snes”
gamepad1_type=”snes”
# game pad 2 enabled? Options: 0 (disabled), 1 (enabled)
gamepad2_enabled=1
# gamepad 2 type. Options: “nes”, “snes”
gamepad2_type=”snes”
—end of file—
EDIT: The GPIO adapter works perfectly on my RPI1.