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Re: [gpsd-dev] Modifying (severly) hardware.html


From: Eric S. Raymond
Subject: Re: [gpsd-dev] Modifying (severly) hardware.html
Date: Wed, 15 Apr 2015 19:51:41 -0400
User-agent: Mutt/1.5.23 (2014-03-12)

Hal Murray <address@hidden>:
> 
> > 1. Does the serial-to-USB chip pass PPS events handed to the serial side out
> > the USB side as interrrupt packets?  The PL2303 does. FTDI chips do not.
> 
> Are you sure about the FTDI chip not working?  Is that all of the FTDI chips 
> or just some/most of them?

Must be just some of them.  I had failure with an FTDI-based prototype
Navisys made before we settled on a PL2303-based device.  That was in 2012.
 
> Is there a simple test case for TIOCMIWAIT? 

contrib/ppscheck.c

>Can I tell gpsd/gpsmon to not use RFC2783?

Not presently, nut it's no big deal to add that switch if you need it.
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>



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