On Sat, 20 Aug 2005, Gian Ghodrat wrote: > Hi all, > > I recently purchased a trekstor i.beat vision mp3 player(flash based, > 512 MB), which behaves like a common usb-storage device when plugged > in(usb 2.0 that is) and therefore shouldn't make any trouble when used > with linux. > First of all, i connected it to several other machines, some running > windows, some running linux(2.6.11.x) where it worked flawlessly, so the > player itself is alright. > Each time i connect it to my machine, which runs an unmodified 2.6.12.3 > kernel(on top of debian unstable), i get the following output with > dmesg(i disabled verbose output because i couldn't get any info from it > and will re-enable it if you think it helps tracking down the problem). > > ####################################################################### > ohci_hcd 0000:00:02.1: wakeup > usb 2-3: new full speed USB device using ohci_hcd and address 30 > usb 2-3: device descriptor read/64, error -110 > usb 3-6: new high speed USB device using ehci_hcd and address 46 > scsi23 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 46 > usb-storage: waiting for device to settle before scanning > Vendor: EXPRESS Model: EXPRESS Rev: PMAP > Type: Direct-Access ANSI SCSI revision: 00 > SCSI device sdb: 978944 512-byte hdwr sectors (501 MB) > sdb: Write Protect is off > sdb: Mode Sense: 23 00 00 00 > sdb: assuming drive cache: write through > SCSI device sdb: 978944 512-byte hdwr sectors (501 MB) > sdb: Write Protect is off > sdb: Mode Sense: 23 00 00 00 > sdb: assuming drive cache: write through > sdb: sdb1 > Attached scsi removable disk sdb at scsi23, channel 0, id 0, lun 0 > Attached scsi generic sg1 at scsi23, channel 0, id 0, lun 0, type 0 > usb-storage: device scan complete > printk: 6218 messages suppressed. > Buffer I/O error on device sdb1, logical block 992000 > Buffer I/O error on device sdb1, logical block 992001 > Buffer I/O error on device sdb1, logical block 992002 > Buffer I/O error on device sdb1, logical block 992003 > Buffer I/O error on device sdb1, logical block 992004 > Buffer I/O error on device sdb1, logical block 992005 > Buffer I/O error on device sdb1, logical block 992006 > Buffer I/O error on device sdb1, logical block 992007 > Buffer I/O error on device sdb1, logical block 992000 > Buffer I/O error on device sdb1, logical block 992001 > ####################################################################### > > I dont get this Buffer I/O errors on my 2.6.11.x kernel, so i guess its > related to my current kernel config (which i'll gladly supply if its > considerd helpful)
It will help if you can rebuild your kernel with USB Mass-Storage verbose debugging turned on in the configuration (CONFIG_USB_STORAGE_DEBUG). That will add a lot of extra debugging information to the system log, which should help to locate the source of your problem. Alan Stern ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
