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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>
Re: [gpsd-dev] Modifying (severly) hardware.html, Gary E. Miller, 2015/04/13