// ntddkbd.h

typedef struct _KEYBOARD_UNIT_ID_PARAMETER {
  USHORT UnitId;
} KEYBOARD_UNIT_ID_PARAMETER, *PKEYBOARD_UNIT_ID_PARAMETER;
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Win32 API reference (ns-ntddkbd-keyboard_unit_id_parameter)

KEYBOARD_UNIT_ID_PARAMETER structure

Description

KEYBOARD_UNIT_ID_PARAMETER specifies the unit ID that Kbdclass assigns to a keyboard.

Members

`UnitId`

Specifies the unit number of a keyboard device. A keyboard device name has the format \Device\KeyboardPortN, where the suffix N is the unit number of the device. For example, a device, whose name is \Device\KeyboardPort0, has a unit number of zero, and a device, whose name is \Device\KeyboardPort1, has a unit number of one.

Remarks

Although this structure is used with IOCTL_KEYBOARD_QUERY_Xxx requests, Kbdclass does not use the UnitId value.

KEYBOARD_UNIT_ID_PARAMETER - NtDoc