From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com [209.85.212.169]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C222E20024C for ; Mon, 12 Mar 2012 19:40:45 -0700 (PDT) Received: by wibhm17 with SMTP id hm17so4023344wib.4 for ; Mon, 12 Mar 2012 19:40:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=Xsu+2ngP6NuODy+GC365xXD0geGXNQSSFrPKG3XxS4E=; b=SsipYgvMdrErInBIxEu1RZAaikxQAWnZpX0q+XTb2RnRmBBsuucWnA9fg5dBVk68t/ s5eRiOZeLI0aC746S60+YbWyGQ8JWULcJy3t6FEquL8lAqRPQPwSKkz+6/mpjjPf/5TE pOpgxk3gZGLHryAHpKKNS646fdFU1BHn9ipWhmMkgTevcm6nHSaiyS5X1yP6ffAHNW5N gzgxPeeFZcPf8zCe2HwEqw6LGxmGcpwxKbbWsWLL3VrBMfz0eVSYp/Sj1+6fwqRZpuFI FGsCIoDdankXivuK5ETWYUZJGnUi2oRUbgwJA5TZ6c01EUSmoIvBPDuGHkqv3MYA0TQ/ 5UxA== MIME-Version: 1.0 Received: by 10.180.103.97 with SMTP id fv1mr3070022wib.17.1331606443897; Mon, 12 Mar 2012 19:40:43 -0700 (PDT) Received: by 10.223.151.8 with HTTP; Mon, 12 Mar 2012 19:40:43 -0700 (PDT) In-Reply-To: <20120313021325.GA19502@thyrsus.com> References: <20120312210345.GC17357@thyrsus.com> <20120312212608.GC17895@thyrsus.com> <20120312213946.GE17895@thyrsus.com> <20120312224546.GA18404@thyrsus.com> <20120313014341.GC18695@thyrsus.com> <20120313021325.GA19502@thyrsus.com> Date: Mon, 12 Mar 2012 19:40:43 -0700 Message-ID: From: Dave Taht To: esr@thyrsus.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: thumbgps-devel@lists.bufferbloat.net Subject: Re: [Thumbgps-devel] Build vs. modify vs. what should we be doing anyway? 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, 13 Mar 2012 02:40:46 -0000 On Mon, Mar 12, 2012 at 7:13 PM, Eric S. Raymond wrote: > Chris Kuethe : >> ublox antaris4 (and probably everything newer) has on-die usb and >> implements the abstract modem class. but 1PPS isn't transmitted over >> usb. > > Annoyingly, it probably could be. =A0That modem model pretty much has to = have > DCD and RI events. Perhaps simply a real usb microcontroller with spi or i2c then driving usb-2.0 for real... http://www.linux-usb.org/ezusb/ - 16 bucks and WAY too many pins... but it should be possible to do much better than that after looking harder. I've also always got a kick out of the propeller chip... http://www.parallax.com/Store/Microcontrollers/PropellerChips/tabid/142/Cat= egoryID/18/List/0/Level/a/ProductID/411/Default.aspx?SortField=3DProductNam= e%2cProductName Atmel's AVRs are also of interest... http://www.olimex.com/dev/avr-usb-162.html http://www.atmel.com/devices/at90usb162.aspx > -- > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Eric= S. Raymond --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net