Alluno Hardware Input Driver (AllunoHInpuD)

Windows KMDF driver for Kernel-level input emulation.

Requirements

• Windows 10+ (64-bit)

Features

• Kernel-level keyboard and mouse
• Multi-device support (ALL filter devices)
• PS/2 scan codes with E0 extended key support
• Absolute and relative mouse positioning
• Mouse buttons, vertical wheel, horizontal wheel

IOCTL Reference

Control Devices

Device Path	Type
\\.\KeyboardAllunoHInpuD	Keyboard
\\.\MouseAllunoHInpuD	Mouse

IOCTL Codes

IOCTL	Value	Description
IOCTL_ALLUNO_SEND (Keyboard)	CTL_CODE(0x0B, 0x820, 0, 0) = 0x000B2080	Send keyboard input
IOCTL_ALLUNO_SEND (Mouse)	CTL_CODE(0x0F, 0x820, 0, 0) = 0x000F2080	Send mouse input

Keyboard Input (KEYBOARD_INPUT_DATA, 12 bytes)

Offset	Size	Field	Description
0	2	UnitId	Device unit (0)
2	2	MakeCode	PS/2 Set 1 scan code
4	2	Flags	0x00=key down, 0x01=key up, 0x02=E0 prefix
6	2	Reserved	0
8	4	ExtraInformation	0

Flags can be combined: 0x03 = E0 + key up (e.g. Right Ctrl release).

Mouse Input (MOUSE_INPUT_DATA, 24 bytes)

Offset	Size	Field	Description
0	2	UnitId	Device unit (0)
2	2	Flags	0x00=relative, 0x01=absolute, 0x03=absolute+virtual desktop
4	2	ButtonFlags	See button flags below
6	2	ButtonData	Wheel delta (signed, 120 = one notch)
8	4	RawButtons	0
12	4	LastX	X delta (relative) or 0-65535 (absolute)
16	4	LastY	Y delta (relative) or 0-65535 (absolute)
20	4	ExtraInformation	0

Button Flags

Flag	Value	Description
LEFT_BUTTON_DOWN	0x0001	Left button press
LEFT_BUTTON_UP	0x0002	Left button release
RIGHT_BUTTON_DOWN	0x0004	Right button press
RIGHT_BUTTON_UP	0x0008	Right button release
MIDDLE_BUTTON_DOWN	0x0010	Middle button press
MIDDLE_BUTTON_UP	0x0020	Middle button release
WHEEL	0x0400	Vertical scroll (ButtonData = delta)
HWHEEL	0x0800	Horizontal scroll (ButtonData = delta)

Common Scan Codes (PS/2 Set 1)

Key	Code	Key	Code	Key	Code
Esc	0x01	Tab	0x0F	Space	0x39
A-Z	0x1E-0x32	1-0	0x02-0x0B	F1-F12	0x3B-0x58
Enter	0x1C	Backspace	0x0E	CapsLock	0x3A
LShift	0x2A	RShift	0x36	LCtrl	0x1D
LAlt	0x38	LWin	E0+0x5B

Extended keys (RCtrl, RAlt, arrows, Insert, Delete, Home, End, PageUp, PageDown) use the E0 prefix flag (0x02) with the base scan code.

Rust Bindings

See alluno-hinpud-sys for Rust bindings.

License

MIT