RnaGetDevicePort

DWORD
WINAPI RnaGetDevicePort(HANDLE hConn, LPDEVICE_PORT_INFO lpdpi)

This function is called by an SMM to get a device port information.

hConn: The RNA connection handle.
lpdpi: An address to a DEVICE_PORT_INFO structure to receive the device port informaiton. On entry, the dwSize field must be filled with the size of the structure.

ERROR_INVALID_HANDLE	The RNA connection handle is invalid.
ERROR_BUFFER_INVALID	The DEVICE_PORT_INFO structure is not valid or missing.