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Annotation of lucent/sys/man/3/lpt, revision 1.1

1.1     ! root        1: .TH LPT 3 
        !             2: .SH NAME
        !             3: lpt \- parallel port interface for PC's
        !             4: .SH SYNOPSIS
        !             5: .nf
        !             6: .B bind -a #L[123] /dev
        !             7: 
        !             8: .B /dev/lpt[123]data
        !             9: .B /dev/lpt[123]dlr
        !            10: .B /dev/lpt[123]pcr
        !            11: .B /dev/lpt[123]psr
        !            12: .fi
        !            13: .SH DESCRIPTION
        !            14: The
        !            15: .I lpt
        !            16: driver provides an interface to the parallel
        !            17: interface normally used for printers.
        !            18: The specifiers
        !            19: .BR 1 ,
        !            20: .BR 2 ,
        !            21: and
        !            22: .BR 3
        !            23: correspond to
        !            24: the parallel interfaces at PC ports 0x3bc, 0x378, and 0x278
        !            25: respectively.
        !            26: .PP
        !            27: .B Lpt?data
        !            28: is write only.
        !            29: Writing to it sends data to the interface.
        !            30: This file is sufficient for communicating with most printers.
        !            31: .PP
        !            32: .BR Lpt?dlr ,
        !            33: .BR lpt?pcr ,
        !            34: and
        !            35: .B lpt?psr
        !            36: are used for fine control of the parallel port.
        !            37: Reading or writing these files corresponds to
        !            38: reading and writing the data latch register,
        !            39: printer control register, and printer status
        !            40: register.
        !            41: These are used by programs to drive special devices.
        !            42: .SH SOURCE
        !            43: .B /sys/src/9/pc/devlpt.c

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