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Synopsis:
    #include <conio.h>
    unsigned int outp( int port, int value );

Description:
    The outp function writes one byte, determined by value, to the 80x86
    hardware port whose number is given by port.

    A hardware port is used to communicate with a device.  One or two bytes
    can be read and/or written from each port, depending upon the hardware.
    Consult the technical documentation for your computer to determine the
    port numbers for a device and the expected usage of each port for a
    device.

Returns:
    The value transmitted is returned.

Example:
    #include <conio.h>

    void main()
      {
        /* turn off speaker */
        outp( 0x61, inp( 0x61 ) & 0xFC );
      }

Classification:
    Intel

Systems:
    All, Netware

See Also:
    inp, inpd, inpw, outpd, outpw