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Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY.
From: |
Eric S. Raymond |
Subject: |
Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY. |
Date: |
Sun, 20 Mar 2016 11:27:52 -0400 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Gary E. Miller <address@hidden>:
> Håkan Johansson <address@hidden> wrote:
>
> > Note: I have no ubx device; so no live testing.
>
> I'd be scared to apply this patch until someone has live tested it.
I'm not scared. It actually fixes a bug - if somehow the UBX is in time-only
mode you don't want it asserting that it can ship a 3D fix, which is what
the code does without this patch.
That's an edge case we may never see. I believe timing mode is disabled
on most of the u-blox variants - you have to buy the extra-cost "T" marque
to get it.
I looked into this possibility at one point and it turned out to be
uninteresting; the non-T variants already deliver more precision that
WAN time service can use, practically speaking, so the T variants would be
overengineering. They might be a good fit for PTP over a LAN.
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
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- [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Håkan Johansson, 2016/03/14
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Gary E. Miller, 2016/03/14
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY.,
Eric S. Raymond <=
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Hal Murray, 2016/03/20
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Eric S. Raymond, 2016/03/22
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Hal Murray, 2016/03/22
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Fred Wright, 2016/03/26
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Paul Fertser, 2016/03/27
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Fred Wright, 2016/03/27
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Håkan Johansson, 2016/03/20
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Eric S. Raymond, 2016/03/20
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Håkan Johansson, 2016/03/20
- Re: [gpsd-dev] [PATCH] Using GOODTIME_IS for UBX_MODE_TMONLY., Eric S. Raymond, 2016/03/22