On Sat, 28 Jul 2007, Olaf G. wrote: > > Actually it is. Apparently the stick won't work unless it receives > > some particular combination of signals and power on the USB lines. The > > PCMCIA controller provides what it wants and the EHCI controller > > doesn't -- at least, it doesn't until ehci-hcd is loaded and by then > > the stick has already "given up". > sounds like it is impossible to do a software workaround, right?
I can't think of any way to do it. > Do you think that there is a possibility that it might work when connecting > the device via an (active) USB hub or does the "particular combination of > signals and power" have nothing do to with the hub? Maybe. But most likely the hub would provide the same signal characteristics as the computer. > Turning off the +5V for a second in order to reset the device isn't possible > by software neither, is it? It's not possible for the ports on your computer but it is possible for certain brands of hub. For example, check out this page: http://www.gniibe.org/ac-power-by-usb/ac-power-control.html If you can get the right sort of hub, it just might work. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
