IOCTL_HID_GET_DEVICE_ATTRIBUTES IOCTL

Description

The IOCTL_HID_GET_DEVICE_ATTRIBUTES request obtains a HIDClass device's attributes in a HID_DEVICE_ATTRIBUTES structure.

For general information about HIDClass devices, see HID Collections.

Parameters

Major code

Input buffer

Parameters.DeviceIoControl.OutputBufferLength contains the length, in bytes, of the HID class driver's buffer located at Irp->UserBuffer.

Input buffer length

The size, in bytes, of the buffer must be greater than or equal to the size, in bytes, of a HID_DEVICE_ATTRIBUTES structure.

Output buffer

The HID minidriver returns the device attributes in a HID_DEVICE_ATTRIBUTES structure at Irp->UserBuffer.

Output buffer length

The size of a HID_DEVICE_ATTRIBUTES structure.

Input/output buffer

Input/output buffer length

Status block

The HID minidriver sets the following fields of Irp->IoStatus:

• Information is set to the number of bytes transferred from the device.
• Status is set to STATUS_SUCCESS if the transfer completed without error. Otherwise, it is set to an appropriate NTSTATUS error code.

See also

HID_DEVICE_ATTRIBUTES

IOCTL_HID_GET_DEVICE_DESCRIPTOR