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 18:58:26 -0700 [thread overview]
Message-ID: <20120924185826.610b061d.gem@rellim.com> (raw)
In-Reply-To: <5CE648CE-F90F-423A-BFA8-7760E65D7296@netgate.com>
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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
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next prev parent reply other threads:[~2012-09-25 1:58 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 [this message]
2012-09-25 2:04 ` Jim Thompson
2012-09-25 2:20 ` Gary E. Miller
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
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