It is a DS9490R that I bought from Hobby Boards some time ago.http://www.hobby-boards.com/catalog/product_info.php?products_id=1503
Hari's comment that the 1-wire adapters usually show up as serial devices was interesting. I think I have one of the few that actually show up as USB devices. The output of "LSUSB is...
Bus 002 Device 003: ID 04fa:2490 Dallas Semiconductor DS1490F 2-in-1 Fob, 1-Wire adapter
I wanted to see if I could get this device running on my Ubuntu 11.04 desktop. The following links were helpful - the first shows how to install the software, and the second shows how to bring the DS9490R to life. Combining the instructions got things working.https://help.ubuntu.com/community/1wireSoftwarehttp://apartment-automation.blogspot.com/2009/09/installing-1-wire-usb-adapter-ds9490r.html
To prepare, insert the DS9490R into the USB port (without the temperature sensor)
download latest owfs tar from sourceforge. Paste in /usr/src and extract.
sudo apt-get install automake autoconf autotools-dev gcc g++ libtool libusb-dev fuse-utils libfuse-dev swig python-dev tcl8.4-dev php5-dev
sudo make install
sudo mkdir /media/1-wire
sudo /opt/owfs/bin/owfs --allow_other -u /media/1-wire
-u key means USB and "/media/1-wire" is mountpoint and --allow_other means that non-root users can read 1-wire directory.
Plug the temp sensor into the DS9490R
Open the folder /media/1-wire and look for a folder named 10.E66CE1010800 or similar. It should contain a "temperature" file that shows the Celsius readout.
So awesome, now I've got it working in Ubuntu. Next question is how much effort to make it work with LMCE? Maybe I have to change some configuration file to contain the -u option for USB? Also maybe change the LMCE 1-wire template so that it gives me something other than serial port options? As always, I'm feeling like a weak swimmer in deep waters!