точная настройка параметров устройства PLIP (fine tune PLIP device parameters)
Имя (Name)
plipconfig - fine tune PLIP device parameters
Синопсис (Synopsis)
plipconfig interface [nibble NN] [trigger NN]
plipconfig [-V] [--version] [-h] [--help]
Описание (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.
Параметры (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 interrupt response time resulting in serial ports dropping
characters, or in dropping of PLIP packets. Changing the plip MTU
can also affect PLIP speed.
Примечание (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.
Смотри также (See also)
ifconfig(8)
