ncpd(8) Daemon which handles the serial link to a Psion


ncpd [-V] [-h] [-v log-class] [-d] [-e] [-p [host:]port] [-s device] [-b baud-rate] [long-options]


ncpd is the daemon which handles the serial link to your Psion. It listens at port 7501 for local connections and provides basic PLP/NCP services for plpfuse and plpftp and other front-ends. It auto-connects to the psion, even after unplugging/switching off therefore it can run all the time if you can dedicate a serial device to it.


-V, --version
Display the version and exit
-h, --help
Display a short help text and exit.
-e, --autoexit
Exit automatically if the device is disconnected. Furthermore, use the current tty as I/O device. This option is intended for starting ncpd on demand using mgetty's auto-detect function. (A patch for mgetty is needed for that).
-v, --verbose=log-class
Increase the logging level of the program. the possible values for log-class are:
Set NCP debug level to LOG
Set NCP debug level to DEBUG
Set Link debug level to LOG
Set Link debug level to DEBUG
Set Packet debug level to LOG
Set Packet debug level to DEBUG
Set Packet debug level to HANDSHAKE
Set overall debug level to verbose
Turn on all the above logging on.
-d, --dontfork
Do not background the daemon.
-p, --port=[host:]port
Specify the port to listen on - by default the value for the host is and the value for the port is looked up in /etc/services using the key psion/tcp. If it is not found there, a default value of 7501 is used.
-s, --serial=device
Specify the serial device to use to connect to the Psion - this defaults to /dev/ttyS0
-b, --baudrate=baud-rate
Specify the baud rate to use for the serial connection. If the word auto is specified, ncpd cycles through baud-rates of 115200, 57600, 38400, 19200 and 9600 baud. Default setting is auto.


Fritz Elfert
Heavily based on p3nfsd by Rudolf Koenig ([email protected]) and plp_1_7 by Philip Proudman ([email protected])
Patches from Matt Gumbley ([email protected])
Man page by John Lines ([email protected])