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What is Kplex?

kplex is a multitransport software data multiplexer which runs on GNU/Linux, Mac OS X, FreeBSD, NetBSD and OpenWRT. It works with data which conform to the NMEA-0183 standard, but has been written without reference to any proprietary documentation not available in the public domain. Kplex multiplexes data inputs from sources such as serial lines, pseudo terminals and network interfaces and send to any (reasonable) number of outputs. kplex can perform filtering of inputs (so you only get the data you want, or don't get the data you don't want from a given source) and outputs (so you only send what you want where you want) and can perform fine-grained failover so that for any given type of data, you specify a priority order of the source you would like to take it from. For further details see the kplex overview.

kplex was last updated on 6th January 2019. See the CHANGELOG for details.

News

January 6th 2019

1.4 is released today and available from the download page. This is mostly a collection of bug fixes accumulated over the past 3 years but also contains a few minor behaviour updates. See the 1.4 beta page for further details.

Note that alhough systemd is now well-entrenched in Linux systems kplex still by default uses legacy system V init scripts for startup although a systemd unit file is now distributed with the source for those that wish to use it.

Automatic systemd configuration on installation will be addressed in a future release.

Thanks as always to all who have contributed advice and feedback!

November 18th 2018

1.4rc2 is released today as source and debs for x84_64 and raspberry pi. This is mainly just a collection of accumulated bug fixes but for further details see the beta page. This version retains legacy init scripts for startup but an example systemd unit file is provided in /usr/share/kplex/kplex.service for those that wish to try it.

October 26th 2017

It's been a long time since the last version of kplex. Quite a few bugs have been fixed in the past year and 1.4 is on its way. Source for 1.4 beta is now available on the download page and in the 1.4 branch on github. Please try it out and send feedback.

deb packages are a little delayed while consideration is given as to how best to deal with legacy systems, i.e. separate packages for older pre-systemd versions of raspbian or attempting to support older and new systems with a single package. Suggestions welcome in the kplex google group.

Thanks to everyone who contributed their suggestions and feedback.

Old News

Previous kplex news is archived here.

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