On Fri, 28 Jul 2006, lu richard wrote: > Hi, > > I want to use SD card in mobile telephone as a mass storage device, so > > I ported file_storage.c(kernel 2.6.7) to kernel 2.4.19. > > When I copy files from Windows XP to SD, at most it can work, > > but sometimes it can't work correctly, error messages as follows: > > end_request: I/O error, dev f1:00 (mmc), sector 248318 > end_request: I/O error, dev f1:00 (mmc), sector 248318 > end_request: I/O error, dev f1:00 (mmc), sector 248318 > end_request: I/O error, dev f1:00 (mmc), sector 248318 > > > # fdisk -l /dev/mmcsd > > Disk /dev/mmcsd: 1 heads, 1 sectors, 248320 cylinders > Units = cylinders of 1 * 512 bytes > > Device Boot Start End Blocks Id System > /dev/mmcsd1 2 248320 124159+ 6 FAT16 > > It seem to the last few sectors have some problem. > > Is bug mass storge modules or SD moudles?
Judging by the log messages above, I'd guess the problem is the SD module. You can test it separately, you know. Just use "dd" to read or write the last few sectors on the card. 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
