---
name: "ncpd"
section: "8"
platform: "linux"
package: "plptools"
version: "1.0.13-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ncpd"
---

# ncpd(8)

Daemon which handles the serial link to a Psion

## NAME

ncpd - Daemon which handles the serial link to a Psion

## SYNOPSIS

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

## DESCRIPTION

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.

## OPTIONS

- **-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:

  - *nl*

    Set NCP debug level to LOG

  - *nd*

    Set NCP debug level to DEBUG

  - *ll*

    Set Link debug level to LOG

  - *ld*

    Set Link debug level to DEBUG

  - *pl*

    Set Packet debug level to LOG

  - *pd*

    Set Packet debug level to DEBUG

  - *ph*

    Set Packet debug level to HANDSHAKE

  - *m*

    Set overall debug level to verbose

  - *all*

    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 127.0.0.1 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.

## SEE ALSO

[plpfuse(8)](/plpfuse/8.md), [plpprintd(8)](/plpprintd/8.md), [plpftp(1)](/plpftp/1.md), [sisinstall(1)](/sisinstall/1.md)

## AUTHOR

Fritz Elfert\
 Heavily based on p3nfsd by Rudolf Koenig (rfkoenig@immd4.informatik.uni-erlangen.de) and plp\_1\_7 by Philip Proudman (phil@proudman51.freeserve.co.uk)\
 Patches from Matt Gumbley (matt@gumbley.demon.co.uk)\
 Man page by John Lines (john+plpman@paladin.demon.co.uk)