@related: [[Memory]] I think I have the same [[http://www.rushessay.com/|custom essays]], If I helps I have noticed this with a card reader device (usb=0bda:0111) with kernel : Linux hostname 2.6.24-19-rt #1 SMP PREEMPT RT Wed Jun 18 16:35:41 UTC 2008 i686 GNU/Linux But I noticed it works fine on another system (same hardware) but previous kernel : Linux hostname 2.6.24-12-rt #1 SMP PREEMPT RT Thu Mar 13 00:49:29 UTC 2008 i686 GNU/Linux I'll may give more details laters at : http://rzr.online.fr/q/cf ===== temium usb2.0 all-in-1 card reader ===== Bus 001 Device 004: ID 0bda:0111 Realtek Semiconductor Corp. uname -a Linux hostname 2.6.24-12-rt #1 SMP PREEMPT RT Thu Mar 13 00:49:29 UTC 2008 i686 GNU/Linux usb 6-3: new high speed USB device using ehci_hcd and address 4 usb 6-3: configuration #1 chosen from 1 choice usbcore: registered new interface driver libusual Initializing USB Mass Storage driver... scsi6 : SCSI emulation for USB Mass Storage devices usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usb-storage: device found at 4 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 6:0:0:0: Direct-Access Generic- Compact Flash 1.00 PQ: 0 ANSI: 0 CCS scsi 6:0:0:1: Direct-Access Generic- SM/xD-Picture 1.00 PQ: 0 ANSI: 0 CCS scsi 6:0:0:2: Direct-Access Generic- SD/MMC 1.00 PQ: 0 ANSI: 0 CCS scsi 6:0:0:3: Direct-Access Generic- MS/MS-Pro 1.00 PQ: 0 ANSI: 0 CCS sd 6:0:0:0: [sdb] 125184 512-byte hardware sectors (64 MB) fdisk -l -u /dev/sdb Disk /dev/sdb: 64 MB, 64094208 bytes 4 heads, 32 sectors/track, 978 cylinders, total 125184 sectors Units = sectors of 1 * 512 = 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 32 125055 62512 6 FAT16 Linux hostname 2.6.24-19-rt #1 SMP PREEMPT RT Wed Jun 18 16:35:41 UTC 2008 i686 GNU/Linux usb 2-1: new full speed USB device using uhci_hcd and address 32 usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new full speed USB device using uhci_hcd and address 33 usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new full speed USB device using uhci_hcd and address 34 usb 2-1: device not accepting address 34, error -71 usb 2-1: new full speed USB device using uhci_hcd and address 35 * https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746 * http://bugzilla.kernel.org/show_bug.cgi?id=11030 * http://www.linux-usb.org/FAQ.html#ts6 * http://ubuntuforums.org/showthread.php?t=295988 * http://www.commentcamarche.net/forum/affich-5348794-bleme-avec-t-flash-card-reader === cf distro === * http://www.unixgarden.com/index.php/embarque/un-systeme-debian-sur-compactflash-16%C2%A0mo * http://gnulinuxmag.com/pub/LM_HS/HS25/ sda.img.bz2 [[VFS]]: VFS: Can not open root device ... or ... * http://www.linuxquestions.org/questions/linux-from-scratch-13/vfs-cannot-open-root-device-null-or-unknown-block8.22-595367/ * [[real_root]] : http://www.linuxforums.org/forum/gentoo-linux-help/61605-gentoo-grub-questions-4.html * http://mulinux.dotsrc.org/news.html * http://DamnSmallLinux.org qemu -cdrom ~/incoming/iso7033.iso -hda /dev/sda # debian from http://instalinux.com ==== misc ==== sudo /bin/sh -c 'echo Y > /sys/module/usbcore/parameters/old_scheme_first' http://cgi.ebay.fr/Adaptateur-SSD-8-GB-Go-G-Carte-CF-HHD-Laptop-2-5-IDE_W0QQitemZ250353208579QQcmdZViewItemQQptZFR_GH_Informatique_Composants_Disques_Durs_Internes?hash=item250353208579&_trksid=p3286.c0.m14&_trkparms=72%3A1526|66%3A2|65%3A12|39%3A1|240%3A1318