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Re: [gpsd-dev] Minimum working example for libgps

From: Gary E. Miller
Subject: Re: [gpsd-dev] Minimum working example for libgps
Date: Sat, 4 Nov 2017 12:56:53 -0700

Yo David!

On Sat, 4 Nov 2017 15:16:13 +0800
David Huichen Dai <address@hidden> wrote:

> I start gpsd with "sudo gpsd /dev/ttyUSB0", without the -n option.
> Does this option matter a lot?

Yes.  It can take gpsd a while to autobaud, determine your GPS type,
get the sat data.  With -n you get good data in 1 second.  No reason not
to use -n, it is the very, very, rare GPS that can save power by not
using -n.

> And note that, sometimes the gpsd starts running automatically when I
> plug in the GPS receiver.

Yeah, you likely have systemd running.  Most people tell systemd to keep
their hands off you gpsd/GPS.

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can’t measure it, you can’t improve it." - Lord Kelvin

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