I have a Compaq USB 2.0 Link adapter which has a wart in the middle of the cable containing a Prolific Technology Inc. 2501 chip and unknown microprocessor and memory, etc. It is to connect a Gateway Solo 2150 laptop (new disk with Fedora 3 - pretty well updated using CDROMs and updates burned to CDROM) with desktop Fedora3smp. Most everything else works nicely (tested on the desktop) - watching the /var/log/messages, I can plug in a Keyspan USB serial, Macintosh USB keyboard, Yahoo mini optical mouse, Flash USB drive - marvelous actions and everything cites works as expected. Keyboard takes over as console keyboard, Flash drive icon appears on desktop - marvelous. However, the host to host only puts one line in the log file: Mar 26 12:07:04 hoho2 kernel: usb 1-4: USB disconnect, address 3 Mar 26 12:07:10 hoho2 kernel: usb 1-4: new high speed USB device using ehci_hcd and address 4 (Actually two lines - one when I pulled it out, the 2nd when I pushed it in). The other end of the cable is plugged into the Gateway (to get power..) although it does not seem to make it more intelligent at this stage. I updated hotplug and udev (to 50) and set DEBUG=true on udev. (on desktop) Reading through the man pages and documentation on hotplug and udev, it is not so clear as to whether hotplug is even working on my system (no hotplugd daemon), or whether it should. Lots of documentation, but then words later saying, Oh, if you have a 2.6 system .. something else happens. It would be nice to have a doc that tells where an event comes into the system at the begining, and then it is passed off to xyz, which then passes if off to abc.. Sort of the ankle bone connected to the leg bone, connected to the knee bone song. The Compaq gadget came with a mini-CD, but it is for Windows only. Maybe there is something essential here? Hoping for a clue Bob Gustafson [root@hoho2 ~]# cd /sys/bus/usb [root@hoho2 usb]# ls devices drivers [root@hoho2 usb]# cd devices [root@hoho2 devices]# ls 1-0:1.0 1-4 1-4:1.0 2-0:1.0 3-0:1.0 4-0:1.0 usb1 usb2 usb3 usb4 [root@hoho2 devices]# cd 1-4 [root@hoho2 1-4]# ls 1-4:1.0 bDeviceSubClass configuration idVendor serial bcdDevice bmAttributes detach_state manufacturer speed bConfigurationValue bMaxPower devnum maxchild version bDeviceClass bNumConfigurations driver power bDeviceProtocol bNumInterfaces idProduct product [root@hoho2 1-4]# cat idProduct 2501 [root@hoho2 1-4]# cat manufacturer Prolific Technology Inc. [root@hoho2 1-4]#