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Annotation of researchv10dc/man/manx/vc.4, revision 1.1

1.1     ! root        1: .TH VC 4
        !             2: .CT 2 graphics
        !             3: .SH NAME
        !             4: vc \- versatec model 122 interface
        !             5: .SH SYNOPSIS
        !             6: .B #include <sys/vcio.h>
        !             7: .SH DESCRIPTION
        !             8: The files
        !             9: .I vc[0-9] refer to the Versatec model 122 interface.  Any plotter obeying
        !            10: the Versatec "green sheet" interface standard can be used with this interface.
        !            11: .PP
        !            12: Upon opening the device, a RESET_ALL command is executed by the driver.
        !            13: The driver will only accept a
        !            14: .I write
        !            15: or an
        !            16: .IR ioctl (2)
        !            17: ; reads will fail and seeks are ignored.
        !            18: .PP
        !            19: .IR ioctl (2)
        !            20: calls perform special operations.  There are two basic calls: VGETSTATE
        !            21: and VSETSTATE.  VSETSTATE can be used to send special commands to the plotter
        !            22: by setting bits in the control status register (CSR).
        !            23: VGETSTATE returns the CSR of the interface.  The functions are specified in
        !            24: vcio.h.  The bits are as follows:
        !            25: .TP
        !            26: .B VC_SPP
        !            27: is "Simultaneous Print/Plot"
        !            28: .TP
        !            29: .B VC_PP
        !            30: is print/plot mode.  Data bytes sent in print mode are printed using the ROM
        !            31: in the plotter.  Bytes written in plot mode are plotted.  It is possible to
        !            32: use print mode to send commands to the plotter.  See the manual for details.
        !            33: .TP
        !            34: .B VC_SWPBT
        !            35: swaps the bytes in the interface.  Useful for the VAX.
        !            36: .PP 
        !            37: The remote operations are sent one at a time.
        !            38: .TF VC_RLTER
        !            39: is short for
        !            40: .I "Remote Line Terminate".
        !            41: It sends a line terminator to the Versatec.
        !            42: .TP
        !            43: .B VC_CLEAR
        !            44: clears the buffer.
        !            45: .TP
        !            46: .B VC_RESET
        !            47: will reset the controller and the plotter.
        !            48: .TP
        !            49: .B VC_RFFED
        !            50: is short for
        !            51: .I "Remote Form Feed"
        !            52: and will advance the paper.
        !            53: .TP
        !            54: .B VC_REOTR
        !            55: is short for
        !            56: .I "Remote End of Transmission"
        !            57: which is equivalent to sending an EOF.
        !            58: .TP
        !            59: .B VC_RESET_ALL
        !            60: is the ultimate reset.
        !            61: .PD
        !            62: .SH FILES
        !            63: .F /dev/vc?
        !            64: .SH BUGS

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