Re: ThinkPad T41 - Strange USB 2.0 behaviour
Jiri Kosina <[email protected]>
| Newsgroups | gmane.linux.usb.devel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
linux-usb-devel list added On Fri, 8 Jun 2007, Robert de Rooy wrote: > Jiri Kosina wrote: > > On Thu, 7 Jun 2007, Robert de Rooy wrote: > > > > > > > Yes I figured it was a hardware problem, but that was not really the point > > > I was trying to raise ;). I would like, if possible for Linux to > > > automatically fallback to USB 1.1 like Windows does (preferably with a > > > suitable warning). > > > > > > > What do you propose as a trigger for the kernel to fallback? > > > > You can work it around manually, just don't use ehci-hcd, can't you? > > > > > Yes I can unload ehci-hcd, but I have one USB 2.0 device that strangely enough > DOES work as such, and unloading ehci-hcd will cause that also to run at 1.1 > speed. > > Clearly something is failing when plugging a device with ehci-hcd loaded, the > driver seems to keep retrying indefinitely. Instead it would be nice if after > a few tries it hands the device over to uhci-hcd. This seems to be the > behaviour under Windows, so I was wondering if Linux could be made to do > something similar. > > -- Jiri Kosina ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel