5. Tools

Introduction

ebusd comes with two helpful tools. See details below.

ebusctl

Client for accessing ebusd via TCP.

Command-line

In order to directly send a request to ebusd, use ebusctl like this:

ebusctl [OPTION...] COMMAND [CMDOPT...]

This will send COMMAND together with CMDOPT options to ebusd and print the response. Use 'help' as COMMAND for help on available ebusd commands.

In order to use the interactive mode, use ebusctl like this:

ebusctl [OPTION...]

Command-line options

These are the possible OPTION values:

• -p, --port=PORT
  Connect to PORT on HOST [8888]

• -s, --server=HOST
  Connect to HOST running ebusd (name or IP) [localhost]

• -?, --help
  Give this help list

• --usage
  Give a short usage message

• -V, --version
  Print program version

ebusfeed

Feed data from an ebusd DUMPFILE to a serial device.

Command-line

ebusfeed [OPTION...] [DUMPFILE]

Command-line options

These are the possible OPTION values:

• -d, --device=DEV
  Write to DEV (serial device) [/dev/ttyUSB60]

• -t, --time=USEC
  Delay each byte by USEC us [10000]

• -?, --help
  Give this help list

• --usage
  Give a short usage message

• -V, --version
  Print program version

With no DUMPFILE, /tmp/ebus_dump.bin is used.

Example

In order to setup two pseudo terminals for using ebusfeed, you can use "socat" like this:

1. run socat to create two bidirectional byte streams:
   socat -d -d pty,raw,echo=0 pty,raw,echo=0
2. create symbol links to appropriate devices, e.g.
   ln -s /dev/pts/2 /dev/ttyUSB60
ln -s /dev/pts/3 /dev/ttyUSB20
3. start ebusd:
   ebusd -f -d /dev/ttyUSB20
4. start ebusfeed:
   ebusfeed /path/to/ebus_dump.bin