Re: High speed devices with kernel 2.6.21.5.
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 11 Jul 2007, Branden Sletteland wrote: > None of these patches exhibited the problem. The third one couldn't > read the USB device descriptor, but the 4th patch fixed that. > > I noticed these patches only touched files in drivers/usb/host, did > anything change in drivers/usb/core or other places in the same time > frame. Certainly. However the problem starts when your device is identified as full speed rather than high speed, and that identification is made within ehci-hcd. Maybe you could try taking the entire drivers/usb/host directory from 2.6.21, putting it in a 2.6.20 source tree, and building it. I don't know if that will work, but it's worth a try. > Or are there other patches prior to 2.6.21-rc1 that I can try? To get the complete set of changes you need to use Git. Then you can perform a bisection to find exactly where the problem starts. Linus Torvalds recently posted a message including a quick summary of how to do this. See http://marc.info/?l=linux-kernel&m=118408208816556&w=2 Alan Stern ------------------------------------------------------------------------- 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