Re: [gpsd-dev] Getting the driver-switching logic right

[Eric S. Raymond]

Andy Walls <address@hidden>:
> Actually the MT-3329 will probably gracefully accept the existing
> sentences the MT-3301 emits.
> 
> 1. $PMTK320 is unsupported, so the unit should respond with a NAK
> $PMTK001 sentence to it.  I will need to test.
> 
> 2. The difference in $PMTK300 is the two '0.0' vs. '0'.  I will need to
> test if the unit will accept '0.0' values.
> 
> 3. For $PMTK314, I had tested my unit previously. The unit will silently
> accept enabling periodic reporting of messages that aren't supported.
> It simply doesn't generate reports for the unsupported messages.  So my
> change there is unnecessary.

I would welcome a patch that quietly supports both variants and explains
what the relevant differences are in comments.

The latter is important because we might want to fold in support for
other variants later, and if so we'll need to know how to keep those
changes compatible.
-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>