From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa0-f43.google.com (mail-oa0-f43.google.com [209.85.219.43]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 2D325201B71 for ; Mon, 24 Sep 2012 19:04:14 -0700 (PDT) Received: by oagk1 with SMTP id k1so4276376oag.16 for ; Mon, 24 Sep 2012 19:04:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer :x-gm-message-state; bh=TcB/21NvYR8Auob5MDHy15wvUdzxC81ZzhcO3aH9F0I=; b=O0+ONh2c9xAmlU7iMjAYGgkM/8+lc4EYTsRosp2QEfvAuC7dl2U3zKh55SOD3qR1Lt TQrD9tS6tvAcSTO99SMYKPkoXvdt98sdfviYImt1Cxr5447Xc42WzK/FR2+XdwuEFM1c lvf8cGk6E0jGk7JOyh6abdY7wEqRw3vAudVha3In5pYyGL4opwNHAlNIif8B9mkPcT3z V65qZU6g2dq84mcBr/vpcrjZpBoR8fmnW01goel4w0n7gz7L6zExxHxeBk5NkvSZNfFT LE9BYGMX2XsRvFs23HoETWMQOqmJ8X764xr6O5qA2PAIANbyih91ZiHdy9asJW1XbdCY Kmgw== Received: by 10.182.193.105 with SMTP id hn9mr11128659obc.11.1348538653448; Mon, 24 Sep 2012 19:04:13 -0700 (PDT) Received: from [172.21.0.33] (24-155-177-88.dyn.grandenetworks.net. [24.155.177.88]) by mx.google.com with ESMTPS id y10sm13756237oed.12.2012.09.24.19.04.11 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 24 Sep 2012 19:04:13 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 6.1 \(1498\)) From: Jim Thompson In-Reply-To: <20120924185826.610b061d.gem@rellim.com> Date: Mon, 24 Sep 2012 21:04:14 -0500 Content-Transfer-Encoding: 7bit Message-Id: <5140B6AE-C217-4494-952A-B30292F73902@netgate.com> References: <77FE49046AE948DDAAA7E2654D2D2DE0@gmail.com> <20120923043354.GA25903@thyrsus.com> <35B82DFD-7BB2-4E85-8051-C661FFD19C04@netgate.com> <20120924153222.25f3f04d.gem@rellim.com> <5CE648CE-F90F-423A-BFA8-7760E65D7296@netgate.com> <20120924185826.610b061d.gem@rellim.com> To: "Gary E. Miller" X-Mailer: Apple Mail (2.1498) X-Gm-Message-State: ALoCoQkCmAFdm/hilFrws3Kh5I3+Vq5tk7zsAURS3jshBM4gwYFDcNOgMwYToNYviDRdmcXHSV6C Cc: "thumbgps-devel@lists.bufferbloat.net" Subject: Re: [Thumbgps-devel] Navisys GR-601W X-BeenThere: thumbgps-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Sep 2012 02:04:14 -0000 ntpd won't enable the PPS stuff, because the ioctl to 'discover' same fails. covered on-list back in June/July On Sep 24, 2012, at 8:58 PM, "Gary E. Miller" wrote: > Yo Jim! > > On Mon, 24 Sep 2012 20:49:42 -0500 > Jim Thompson wrote: > >> >> On Sep 24, 2012, at 5:32 PM, Gary E. Miller wrote: >> >>> Yo Jim! >>> >>> On Sun, 23 Sep 2012 00:07:43 -0500 >>> Jim Thompson 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