Intel Extensible Firmware Interface - Manual (Page 340)

Extensible Firmware Interface Specification
10-46 12/01/02 Version 1.10
10.10 Simple Pointer Protocol
This section defines the Simple Pointer Protocol and a detailed description of the
EFI_SIMPLE_POINTER_PROTOCOL . The intent of this section is to specify a simple method
for accessing pointer devices. This would include devices such as mice and trackballs.
The EFI_SIMPLE_POINTER_PROTOCOL allows information about a pointer device to be
retrieved. This would include the status of buttons and the motion of the pointer device since the
last time it was accessed. This protocol is attached the device handle of a pointer device, and can
be used for input from the user in the preboot environment.
EFI_SIMPLE_POINTER_PROTOCOL
Summary
Provides services that allow information about a pointer device to be retrieved.
GUID
#define EFI_SIMPLE_POINTER_PROTOCOL_GUID \
{0x31878c87,0xb75,0x11d5,0x9a,0x4f,0x0,0x90,0x27,0x3f,0xc1,0x4d}
Protocol Interface Structure
typedef struct _EFI_SIMPLE_POINTER_PROTOCOL {
EFI_SIMPLE_POINTER_RESET Reset;
EFI_SIMPLE_POINTER_GET_STATE GetState;
EFI_EVENT WaitForInput;
EFI_SIMPLE_INPUT_MODE *Mode;
} EFI_SIMPLE_POINTER_PROTOCOL;
Parameters
Reset Resets the pointer device. See the Reset() function
description.
GetState Retrieves the current state of the pointer device. See the
GetState() function description.
WaitForInput Event to use with WaitForEvent() to wait for input from the
pointer device.
Mode Pointer to EFI_SIMPLE_POINTER_MODE data. The type
EFI_SIMPLE_POINTER_MODE is defined in “Related
Definitions” below.