On Wed, 1 Dec 2004, Xu Levis-Q16136 wrote: > Alan/Anybodies, > Now I build 10 URB(IN) and sent them in my prob function, then sent the > remaining URBs from the completion callback. The transfer speed is about > 650K bytes/second, good speed. Another issue, do you think this way is > suit for BULK_OUT transfer? The test result is same as before when i > build 5 URB(OUT) and sent my bulkusb_write function.
The same principle should work for both bulk-in and bulk-out. However the optimum number and size of the URBs will vary from system to system. You should experiment to see what combination works best on your computer. Alan Stern ------------------------------------------------------- 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://productguide.itmanagersjournal.com/ _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
