Am 2005-04-15 16:47 +0300 schrieb Olav Kongas: > More info would be needed to pinpoint the culprit. Does this > happen with other USB host controllers (no idea, whether you > need to install linux-wlan-ng driver on test boxen or not)?
I will try another host controller. And no, linux-wlan-ng is not involced at enumeration :) > In any case, you can recompile the driver with DEBUG, > PTD_TRACE, and URB_TRACE enabled and post logs for a > successful and a failing enumeration to compare. I will try that. > time if=a_16MB_file_on_stick of=/dev/null bs=16k > > yielded here 717 kiB/s. [EMAIL PROTECTED] ~ # time dd if=/dev/sda of=/dev/null bs=16k count=1024 1024+0 records in 1024+0 records out real 0m 41.91s user 0m 0.04s sys 0m 1.32s [EMAIL PROTECTED] ~ # time dd if=/dev/zero of=/dev/sda bs=16k count=1024 1024+0 records in 1024+0 records out real 0m 41.24s user 0m 0.00s sys 0m 2.78s Are these ~390 kiB/s? 16*1024/42 390.09523809523809523809 I not sure, I am only able to hex-calculate recently :D > By the way, for the current driver version the maximum > possible transfer rate when performing bulk-only transfers > to/from a single device is 812.5 kiB/s. Why do you know that so exactly? Konsti -- GPG KeyID EF62FCEF Fingerprint: 13C9 B16B 9844 EC15 CC2E A080 1E69 3FDA EF62 FCEF ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
