// ntdd8042.h

// CTL_CODE(0x000b, 0xff3, METHOD_NEITHER, FILE_ANY_ACCESS)
#define IOCTL_INTERNAL_I8042_KEYBOARD_START_INFORMATION 0x000B3FCF
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Windows Driver Kit DDI reference (ni-ntdd8042-ioctl_internal_i8042_keyboard_start_information)

IOCTL_INTERNAL_I8042_KEYBOARD_START_INFORMATION IOCTL

Description

The IOCTL_INTERNAL_I8042_KEYBOARD_START_INFORMATION request passes a pointer to a keyboard interrupt object. I8042prt sends this request synchronously to the top of the device stack after the keyboard interrupt object is created. Upper-level filter drivers that need to synchronize their callback operation with the I8042prt keyboard ISR can use the pointer to the keyboard interrupt object.

Parameters

Major code

IRP_MJ_INTERNAL_DEVICE_CONTROL

Input buffer

AssociatedIrp.SystemBuffer points to a buffer allocated by I8042prt to input an INTERNAL_I8042_START_INFORMATION structure.

Input buffer length

Parameters.DeviceIoControl.InputBufferLength specifies the size, in bytes, of an INTERNAL_I8042_START_INFORMATION structure.

Output buffer

None

Output buffer length

None

Input/output buffer

Input/output buffer length

Status block

The Information member is set to zero.

The Status member is set to STATUS_SUCCESS.

IOCTL_INTERNAL_I8042_KEYBOARD_START_INFORMATION - NtDoc