1 .TH PLIPCONFIG 8 "17 February 1995" "" ""
3 plipconfig \- fine tune PLIP device parameters
5 .B "plipconfig interface"
7 .B "plipconfig interface [nibble NN] [trigger NN] [unit NN]"
10 is used to (hopefully) improve PLIP performance by changing the default
11 timing parameters used by the PLIP protocol. Results are dependent on
12 the parallel port hardware, cable, and the CPU speed of each machine
13 on each end of the PLIP link.
19 displays the status of the given interface
20 only. Otherwise, it will try to set the options.
24 Sets the nibble wait value in microseconds. Default is 3000.
27 Sets the trigger wait value in microseconds. Default is 500.
29 PLIP speed can in some cases be improved by lowering the default values.
30 Values which are too low may cause excess use of CPU, poor interrupt
31 response time resulting in serial ports dropping characters, or in dropping
32 of PLIP packets. Changing the plip MTU can also affect PLIP speed.
34 If you get no response it is far more likely the irq is wrong and needs
35 setting with ifconfig. The few cases where the default parameters will
36 be too fast are those using very long cables. Something you should
37 never do as the parallel port is not specified or designed for driving
44 John Paul Morrison, <jmorriso@bogomips.ee.ubc.ca>, <ve7jpm@ve7jpm.ampr.org>