IK(7)									 IK(7)

NAME    [Toc]    [Back]

     ik	- Ikon 10088 (ikc) parallel interface controller

SYNOPSIS    [Toc]    [Back]

     /dev/cent
     /dev/vp0

DESCRIPTION    [Toc]    [Back]

     This is the driver	for the	Ikon 10088 (and	10088A)	parallel interface
     controller.  The controller can support any one of	three possible
     interfaces:  Versatec TTL,	Versatec differential, or (Tektronixcompatible)
 Centronics.  The Ikon controller board	must be	jumpered,
     switched, connected, and terminated differently depending on which
     interface is being	used.

     If	the board is configured	for the	Centronics interface, bytes written to
     /dev/cent are output to the parallel port.	 A printer reset (input	prime)
     is	issued when the	device file is opened.

     If	the board is configured	for either Versatec interface, bytes written
     to	/dev/vp0 are output to the parallel port.  A printer reset is issued
     when the device file is opened.  In addition, the following Versatec
     control calls are provided	via ioctl(2).  The relevant definitions	are
     contained in the include file <sys/vcmd.h>.

     ioctl(fd,VSETSTATE,int_3_ptr);
	  changes the Versatec device state according to the contents of the 3
	  integers pointed at by int_3_ptr.  The first integer specifies a
	  Versatec command:
	  VPRINT commands the Versatec device to enter print mode;
	  VPLOT	commands it to enter plot mode;
	  VPRINTPLOT commands it to enter simultaneous print/plot mode;
	  VLF commands it to output a linefeed;
	  VFF commands it to output a formfeed;
	  VREOT	drives the remote EOT signal.
	  The second integer specifies a timeout delay (in seconds) for
	  subsequent Versatec operations, including output operations.	A
	  specified delay of 0 is ignored.  The	default	delay is 300 seconds.
	  This may be insufficient for large and / or slow devices.  The third
	  integer is ignored.

     ioctl(fd,VGETSTATE,int_3_ptr);
	  passes back Versatec device state information	in the 3 integers
	  pointed at by	int_3_ptr.  The	first integer contains:
	  VPRINT if the	Versatec device	is in print mode;
	  VPLOT	if it is in plot mode;
	  VPRINTPLOT if	it is in simultaneous print/plot mode.
	  The second integer contains the current timeout delay	(in seconds)
	  (see VSETSTATE above).  The third integer is not used.






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IK(7)									 IK(7)



     It	is normally unnecessary	to use /dev/cent or /dev/vp0 directly; the
     spooling software (see lp(1)) provides an adequate	interface.

FILES    [Toc]    [Back]

     /dev/cent
     /dev/vp0

SEE ALSO    [Toc]    [Back]

     image(4), ipaste(1), lp(1), snap(1)


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