Hi, On Thu, Aug 15, 2013 at 03:31:40PM -0500, Dan Williams wrote: > On Thu, 2013-08-15 at 10:47 -0500, Peter Hyman wrote: > > On 08/15/2013 09:47 AM, Dan Williams wrote: > > > On Thu, 2013-08-15 at 11:02 +0200, Bjørn Mork wrote: > > >> Peter Hyman <pete@xxxxxxxxxxxxxx> writes: > > >> > > >>> On 08/14/2013 01:42 PM, Bjørn Mork wrote: > > >>> snip... > > >>> > > >>>> Great! And if you can snoop on Windows trying to figure out how to > > >>>> switch the modes, then that would also help. I believe Wireshark with > > >>>> usbpcap is the current state-of-the-art USB sniffer for Windows: > > >>>> http://desowin.org/usbpcap/ > > >>>> > > >>>> > > >>>> Bjørn > > >>> Detailed files attached. > > > Anyone mind sending those files over to me? > > > > > > Dan > > snip... > > > > Please download AC250U_lsusb_pcap.tar.bz2 from: > > https://app.box.com/s/6sln7t1na4pz6ij7ggpc > > The modem is speaking Sierra's proprietary CnS protocol. This is a > proprietary protocol for which no public documentation has been > released, and so we'd have to reverse-engineer the specific commands > being used to switch the modem between 3G and 4G mode. This is actually not true. Sierra released a document titled "CDMA 1xEV-DO CnS Reference" under a Creative Commons license. It has since disappeared from the Internet, but private copies exist. ;) There are a large number of specifics not covered by this document, but it does cover the basics of speaking CnS. Actually, I recall you mentioning this document here: http://blogs.gnome.org/dcbw/2010/04/15/mobile-broadband-and-qualcomm-proprietary-protocols/ I can post the document somewhere if it would be helpful. It's only 279KB. Thanks, Forest -- Forest Bond http://www.alittletooquiet.net http://www.rapidrollout.com -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
