From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 3 Mar 2000 14:33:47 -0800 From: Greg KH To: Brad Parker Cc: Gabriel Ricard , linuxppc-dev@lists.linuxppc.org, linux-usb@suse.com Subject: Re: [linux-usb] Re: USB Device Driver Development Resources Message-ID: <20000303143347.D21458@kroah.com> References: <20000303180757.9695.qmail@web1704.mail.yahoo.com> <200003032108.QAA25344@p2.parker.boston.ma.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <200003032108.QAA25344@p2.parker.boston.ma.us>; from brad@parker.boston.ma.us on Fri, Mar 03, 2000 at 04:08:39PM -0500 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Fri, Mar 03, 2000 at 04:08:39PM -0500, Brad Parker wrote: > > Gabriel Ricard wrote: > ... > >I'm looking to write a device driver for my Keyspan > >USB -> Mac Serial adapter so I can attempt to use my > >DeLorme GPS device under Linux (another step to aid me > >in eliminating my need for MacOS). I think I posted to > >this mailing list a while back asking for info, I'm > >not sure. > > I want to do the same. I contacted Keyspan and they said "huh - > interesting" and I've heard nothing since. That was 2-3 weeks ago. > > The 2 port keyspan fob I have (USA28X) uses the Anchor EXUSB chip. > This means it needs code downloaded to it. My hope was that Keyspan > would release a binary image (srecs) of their code load and we could > include it in the Linux driver. This assumes they use a standard USB > interface to the serial ports... There is no "standard" way to interface USB to serial. Every vendor does it differently. You can thank Microsoft for that big problem (it's a long story, ask me if you're curious.) But there is a person working on a Linux driver for this device without the help of Keyspan. His name is Brian Warner, and hopefully there will be some code for you to play with soon (right Brian? :) He is writing his own AnchorChip code for the device and the driver will download it to the converter, eliminating the need to reverse engineer Keyspan's vendor specific protocol. A very cool hack. greg k-h greg@kroah.com ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/