LK201/LK401 keyboard input
Name
input-lk201 : LK201/LK401 keyboard input
Synopsis
input-lk201: [<file>]
Description
The lk201 and lk401 devices are keyboards made by Digital Equipment Corporation for some of there older micro computer systems and terminals.
They connect via a 4 pin RJ connector, which carries 11.8V (+/- 6%), GND, and two bidirectional async RS423 (RS232 Compatible) serial lines, which are Receive and Transmit. The pins are as follows (looking on to the male (lk201 side) connector):
------------------- | " " " " | | L V G D | | K + N E | | -> D C | | D -> | | E L | | C K | -- -- | | -- -- | | -------
Options
- file
Specifies the serial port device to use (e.g. /dev/ttyS1). If this argument is not specified as part of the input's arguments, then the device named in the environment variable GII_LK201_OPTIONS is used.
Environment variables
- GII_LK201_OPTIONS
File name of serial port.
Features
- Generates evKey* events.
Known Bugs
- key repeat messages are not sent, which can annoy users who want to use the cursor keys.
- Handle setting of keyclick and bell, which can also annoy users.