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Re: [gpsd-users] How to detect that GPS device on /dev/ttyS0 is off?
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From: |
Eric S. Raymond |
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Subject: |
Re: [gpsd-users] How to detect that GPS device on /dev/ttyS0 is off? |
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Date: |
Thu, 20 Jun 2013 08:51:55 -0400 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Wielant, Ulrich <address@hidden>:
> My question is now:
> How can I detect (in the gpsd JSON protocol) if a GPS device is switched off
> or disconnected from the serial device? All I can see is that no more new
> messages arrive when using the WATCH command.
That's all you can have, sorry. This is not a limitation of GPSD, it's
fundamental to any device that issues sporadic reports on an unreliable
network.
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>