VDHPortIO

Perform IO to a specified port.

This function is used to perform input/output operations to a specified local port.


 * Parameters:Pointer to a PORT_IO structure.
 * Exit:Return code.
 * Structures
 * port - indicates which port to read to, or write from.
 * data - contains the data read from a read request, or the data to write if a write request.
 * flags - indicate what operation to perform.
 * IO_READ_BYTE Read a byte from the port
 * IO_READ_WORD Read a word from the port
 * IO_READ_DWORD Read a dword from the port
 * IO_WRITE_BYTE Write a byte to the port
 * IO_WRITE_WORD Write a word to the port
 * IO_WRITE_DWORD Write a dword to the port