On Monday 05 February 2007 11:27 am, Alan Stern wrote: > ---------- Forwarded message ---------- > Date: Sun, 04 Feb 2007 14:20:52 -0500 > From: [EMAIL PROTECTED] > To: [email protected] > Subject: [Linux-usb-users] ehci_hcd with slower FSB than normal > > I have a pc that I use as a VDR. In order to use less power and make it > a little quiter I run > it with a lower FSB than I could. Normal is FSB 133 Mhz and I run it > with 66 Mhz FSB. > > The problem is that the ehci_hcd doesn't work with my FSB 66 Mhz. > No USB 2.0 memory stick and no USB 2.0 harddisk. > If I remove ehci_hcd it runs nicely with uhci_hcd, but slowly of course. > > When I run it with FSB 66 Mhz I get: > > kernel: usb 4-2: new high speed USB device using ehci_hcd and address 2 > kernel: usb 4-2: no configurations > kernel: usb 4-2: can't read configurations, error -22 > > When I run it with FSB 133 Mhz I get: > > kernel: usb 4-2: new high speed USB device using ehci_hcd and address 2 > kernel: usb 4-2: configuration #1 chosen from 1 choice > > When I boot into Windows USB seems to work nicely in FSB 66 so > it shouldn't be a hardware problem?
The usual next question: what does the kernel say with CONFIG_USB_DEBUG enabled? I've heard of problems with VIA, but that one's especially wierd. - Dave ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
