IOCTL_HID_GET_DEVICE_ATTRIBUTES IOCTL (hidport.h)
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.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.
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.
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.
|Header||hidport.h (include Hidport.h)|