See here for the HID shared-memory.

hid

hid:dbg

Cmd	Name
0	DeactivateDebugPad
1	SetDebugPadAutoPilotState
2	UnsetDebugPadAutoPilotState
10	DeactivateTouchScreen
11	SetTouchScreenAutoPilotState
12	UnsetTouchScreenAutoPilotState
20	DeactivateMouse
21	SetMouseAutoPilotState
22	UnsetMouseAutoPilotState
30	DeactivateKeyboard
31	SetKeyboardAutoPilotState
32	UnsetKeyboardAutoPilotState
50	DeactivateXpad
51	SetXpadAutoPilotState
52	UnsetXpadAutoPilotState
60	DeactivateJoyXpad
91
110	DeactivateHomeButton
111	SetHomeButtonAutoPilotState
112	UnsetHomeButtonAutoPilotState
120	DeactivateSleepButton
121	SetSleepButtonAutoPilotState
122	UnsetSleepButtonAutoPilotState
123	DeactivateInputDetector
130	DeactivateCaptureButton
131	SetCaptureButtonAutoPilotState
132	UnsetCaptureButtonAutoPilotState
201	ActivateFirmwareUpdate
202	DeactivateFirmwareUpdate
203	StartFirmwareUpdate
204	GetFirmwareUpdateStage
205	GetFirmwareVersion
206	GetDestinationFirmwareVersion
207