Here is a list of all documented files with brief descriptions:

[detail level 1234]

include
joybus
backend
gecko.h
loopback.h
rp2xxx.h
host
common.h
gamecube.h
n64.h
target
gc_controller.h
n64_controller.h
bus.h
commands.h	Joybus command codes and utilities
crc8.h
errors.h
gamecube.h
joybus.h
n64.h
target.h
src
backend
gecko_sdk
loopback
rp2xxx