On Tue, 10 Oct 2006, JackRain wrote: > Alan Stern,ÄúºÃ£¡ > > thank you! > > due to my nand flash driver accessing speed is very slow,only 700KB/s > when copying form flash to flash ,
What is the timeout limit? With a Linux host, the timeout would be 30 seconds for transferring 120 KB. That's only 4 KB/s! At 700 KB/s you can go much faster than needed. > the linux system filesystem cached increased too large to response the > UFI test_unit_ready or write command in time. TEST UNIT READY has nothing to do with filesystem caches. > so ,Windows indicates the timeout error and my usb device driver failed > to recover from this error. You must be doing something else wrong. In any case, I can't help you without seeing some debugging logs from the device. > I want to know how to tell windows that the device can only process > 700KB/s data ,and send data less or equal to this length to device. Windows probably already sends data slower than that. Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
