char constants vs. hard-coding Post: 302227706

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plipconfig

PLIPCONFIG(8)															     PLIPCONFIG(8)

NAME

       plipconfig - fine tune PLIP device parameters

SYNOPSIS

       plipconfig interface
       plipconfig interface [nibble NN] [trigger NN] [unit NN]

DESCRIPTION

       Plipconfig is used to (hopefully) improve PLIP performance by changing the default timing parameters used by the PLIP protocol. Results are
       dependent on the parallel port hardware, cable, and the CPU speed of each machine on each end of the PLIP link.

       If the single interface argument is given, plipconfig displays the status of the given interface only.  Otherwise, it will try to  set  the
       options.

OPTIONS

       nibble NN
	      Sets the nibble wait value in microseconds. Default is 3000.

       trigger NN
	      Sets the trigger wait value in microseconds. Default is 500.

       PLIP speed can in some cases be improved by lowering the default values.  Values which are too low may cause excess use of CPU, poor inter-
       rupt response time resulting in serial ports dropping characters, or in dropping of PLIP packets. Changing the plip  MTU  can  also  affect
       PLIP speed.

NOTE

       If  you	get no response it is far more likely the irq is wrong and needs setting with ifconfig. The few cases where the default parameters
       will be too fast are those using very long cables. Something you should never do as the parallel port is  not  specified  or  designed  for
       driving long cable runs.

SEE ALSO

       ifconfig(8)

BUGS

       Non.

AUTHOR

       John Paul Morrison, <jmorriso@bogomips.ee.ubc.ca>, <ve7jpm@ve7jpm.ampr.org>

								 17 February 1995						     PLIPCONFIG(8)