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Re: [gpsd-dev] Status NMEA2000
From: |
Eric S. Raymond |
Subject: |
Re: [gpsd-dev] Status NMEA2000 |
Date: |
Tue, 27 Jan 2015 15:17:30 -0500 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hal Murray <address@hidden>:
>
> address@hidden said:
> > OK, so I think this means the cp210x driver doesn't support TIOCMIWAIT and
> > is returning EINVAL on the attempt. Annoying but harmless.
>
> > The meatball-surgery way to prevent this message would be to disable
> > starting the PPS thread on USB devices. But we have a PPS device - the
> > Macx-1 - that this would disable.
>
> Why not just try it, and if you get an error, just ignore it rather than
> print an error message? (or change it to some debugging level)
I am doing that and better. I've added a message at LOG_PROG level that
is a positive confirm when the ioctl() succeeds, and I've added a paragraph
to the "Enabling PPS" section of the Time Service HOWTO telling the adventurer
what to look for when troubleshooting.
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>