Re: [Linux-usb-users] reset low speed USB device using uhci_hcd
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 13 Mar 2007, Gordon Messmer wrote: > Alan Stern wrote: > > > > It would help if you could try out 2.6.20, since it is the most recent > > kernel. Verify that changing those two config settings causes the errors > > to start, whereas changing any one of them eliminates the errors. > > 2.6.20 behaves the same. If I built a preemptible kernel, (with preempt > the BKL) and the timer frequency is 1000 HZ, then the mouse has issues. > If I build a kernel with a lower frequency, or with voluntary > preemption at any timer frequency, I don't see the problem. This seems so unlikely, I have trouble believing it's not a hardware problem. Have you tried using a different mouse? Or using your mouse on a different computer? What about if you turn on preemption but not preempt-BKL (shooting in the dark)? Do you think the errors are correlated with, say, disk activity? Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel