Hi, I recently upgraded to Fedora Core 5, from an old Red Hat 9 installation, so I began using Linux 2.6 for the first time. I immediately started having USB problems. Ports that don't work, devices that stop working suddenly. I did searching of this list and found that cabling is often suspect. So I redid the cabling to my front USB ports. Now my front USB 2.0 ports work fine, but I'm still having trouble with a particular device. It's an internal 9-in-1 card reader. If you put a SD card in and read a few photos off of it, it's guaranteed to stop working with the following message under "dmesg":
usb 6-3: reset high speed USB device using ehci_hcd and address 2 If I remove the ehci_hcd driver, it works fine with the ohci_hcd driver. I think the device is just not completely USB 2.0 compliant. It seems to flake out under Windows too. I suppose it still could be cabling, but it looks to have a good quality cable, and I've tried to isolate it from other sources as much as possible inside the case. The type of cable it uses isn't easy to come by, so I think I'm stuck with what I've got. So my question is, can I force ohci_hcd to drive this device? If I do "modprobe -r ehci_hcd", the device will work, but then I lose all USB 2.0 capability. I'd like to just prevent ehci_hcd from trying to drive that device. (It's Vendor=07cc ProdID=0350 BTW, It's sort of a generic/OEM device, I'm not sure who the manufacturer is) Thanks, Tony Smolar ------------------------------------------------------------------------- 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 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
