On Thu, 5 Jan 2006, Helmut Toplitzer wrote: > Ok because of the long thread a short summary: > > My transferrate tests were running on a normal IDE device. > > VIA IDE, USB and so on ... systems are intefering. > USB-system affects IDE system, sometimes in > a dramatic way (diff. 20MB/s on IDE transferrate). > > Beside this sometimes the ehci-driver disconnects USB devices > without any reason. This is a big problem in streaming data etc. > It looks like this: > 22:36 kernel: hub 4-0:1.0: state 5 ports 6 chg 0000 evt 0008 > 22:36 kernel: ehci_hcd 0000:00:10.3: GetStatus port 3 status 00180b POWER > sig=j PEC \ > CSC CONNECT 22:36 kernel: hub 4-0:1.0: port 3, status 0501, change 0003, 480 > Mb/s > 22:36 kernel: usb 4-3: USB disconnect, address 2 > 22:36 kernel: usb 4-3: usb_disable_device nuking all URBs
This may be related to the PCI configuration values, as initialized by your chipset. What do you get from "lspci -xxx -s 10.3"? Alan Stern ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
