VDHPortIO

Description

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

Parameters

Exit

Structures

typedef struct port_io_s{
   ulong_t port;   (Input)
   ulong_t data;   (Input/Output)
   ulong_t flags;  (Input)
} PORT_IO;

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 Notes

None.