From: "Gary E. Miller" <gem@rellim.com>
To: Jim Thompson <jim@netgate.com>
Cc: "thumbgps-devel@lists.bufferbloat.net"
<thumbgps-devel@lists.bufferbloat.net>
Subject: Re: [Thumbgps-devel] Navisys GR-601W
Date: Mon, 24 Sep 2012 19:20:03 -0700 [thread overview]
Message-ID: <20120924192003.3fa060d6.gem@rellim.com> (raw)
In-Reply-To: <5140B6AE-C217-4494-952A-B30292F73902@netgate.com>
[-- Attachment #1: Type: text/plain, Size: 1992 bytes --]
Yo Jim!
On Mon, 24 Sep 2012 21:04:14 -0500
Jim Thompson <jim@netgate.com> wrote:
> ntpd won't enable the PPS stuff, because the ioctl to 'discover' same
> fails.
Thus one uses gpsd.
> covered on-list back in June/July
Moot.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
gem@rellim.com Tel:+1(541)382-8588
> On Sep 24, 2012, at 8:58 PM, "Gary E. Miller" <gem@rellim.com> wrote:
>
> > Yo Jim!
> >
> > On Mon, 24 Sep 2012 20:49:42 -0500
> > Jim Thompson <jim@netgate.com> wrote:
> >
> >>
> >> On Sep 24, 2012, at 5:32 PM, Gary E. Miller <gem@rellim.com> wrote:
> >>
> >>> Yo Jim!
> >>>
> >>> On Sun, 23 Sep 2012 00:07:43 -0500
> >>> Jim Thompson <jim@netgate.com> wrote:
> >>>
> >>>> They don't work that we'll on FreeBSD.
> >>>
> >>> Really? First I've heard of it. What's the issue?
> >>
> >> In a word: jitter
> >
> > And how much jitter? The lack of RFC2783 should not be noticeable
> > since the jitter on the USB serial is so large. RFC2783 helps in
> > the micro Second range and the USB serial is in the milli Second
> > range.
> >
> > So with, and without you are going to get about 1 milli Second
> > jitter.
> >
> > So, what problem are you pointing up with *BSD?
> >
> >> Compare:
> >> http://fxr.watson.org/fxr/source/dev/uart/uart_core.c?v=FREEBSD9
> >> and
> >> http://fxr.watson.org/fxr/source/dev/sio/sio.c?v=FREEBSD9
> >> and
> >> http://fxr.watson.org/fxr/source/pc98/cbus/sio.c?v=FREEBSD9
> >>
> >> to anything found in
> >>
> >> http://fxr.watson.org/fxr/source/dev/usb/serial/?v=FREEBSD9
> >
> > Not sure what you are trying to show me.
> >
> > RGDS
> > GARY
> > ---------------------------------------------------------------------------
> > Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR
> > 97701 gem@rellim.com Tel:+1(541)382-8588
>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 198 bytes --]
next prev parent reply other threads:[~2012-09-25 2:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-23 3:22 Joe Williams
2012-09-23 4:33 ` Eric S. Raymond
2012-09-23 5:07 ` Jim Thompson
2012-09-24 22:32 ` Gary E. Miller
2012-09-25 1:49 ` Jim Thompson
2012-09-25 1:58 ` Gary E. Miller
2012-09-25 2:04 ` Jim Thompson
2012-09-25 2:20 ` Gary E. Miller [this message]
2012-09-26 19:52 ` Joe Williams
2012-09-26 20:00 ` Gary E. Miller
2012-09-26 20:05 ` Dave Taht
2012-09-26 20:05 ` Joe Williams
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120924192003.3fa060d6.gem@rellim.com \
--to=gem@rellim.com \
--cc=jim@netgate.com \
--cc=thumbgps-devel@lists.bufferbloat.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox