I wrote on 2007-09-30: > Alan Stern wrote: >> The simplest way to find out what's going on is to rebuild the kernel >> with CONFIG_USB_STORAGE_DEBUG enabled. > > Good, I'll do this and report what I find out. May take while before I > get time again to do so.
I haven't done this yet, but someone reminded me to switch CONFIG_SCSI_MULTI_LUN on. Now the following happens under 2.6.22 as well as 2.6.24-rc3: The built-in 4GB flash is recognized as LUN 0 and gets an sd device, but no valid partition table is found on it. An 8GB SDHC card, if inserted into the iAudio D2, is recognized as LUN 1 and gets an sd device. Its partition table is recognized and the filesystem on the card can be mounted. A lot of "attempt to access beyond end of device" errors are logged though, something which does not happen if I read this card in a separate card reader. So, CONFIG_SCSI_MULTI_LUN is what I missed when I wrote the initial posting. The partition table problem on the built-in flash and the size problem of the extension card happened without that option too. When I had a way older firmware on the iAudio D2, I was able to access the built-in flash and mount its 4GB partition though. dmesg: usb 1-1: new high speed USB device using ehci_hcd and address 6 usb 1-1: configuration #1 chosen from 1 choice Initializing USB Mass Storage driver... scsi2 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 6 usb-storage: waiting for device to settle before scanning usbcore: registered new interface driver usb-storage USB Mass Storage support registered. scsi 2:0:0:0: Direct-Access COWON D2 0100 PQ: 0 ANSI: 0 sd 2:0:0:0: [sdb] 7815168 512-byte hardware sectors (4001 MB) sd 2:0:0:0: [sdb] Write Protect is off sd 2:0:0:0: [sdb] Mode Sense: 37 00 00 08 sd 2:0:0:0: [sdb] Assuming drive cache: write through sd 2:0:0:0: [sdb] 7815168 512-byte hardware sectors (4001 MB) sd 2:0:0:0: [sdb] Write Protect is off sd 2:0:0:0: [sdb] Mode Sense: 37 00 00 08 sd 2:0:0:0: [sdb] Assuming drive cache: write through sdb: unknown partition table sd 2:0:0:0: [sdb] Attached SCSI removable disk sd 2:0:0:0: Attached scsi generic sg1 type 0 scsi 2:0:0:1: Direct-Access COWON D2 0100 PQ: 0 ANSI: 0 sd 2:0:0:1: [sdc] 15728160 512-byte hardware sectors (8053 MB) sd 2:0:0:1: [sdc] Write Protect is off sd 2:0:0:1: [sdc] Mode Sense: 37 00 00 08 sd 2:0:0:1: [sdc] Assuming drive cache: write through sd 2:0:0:1: [sdc] 15728160 512-byte hardware sectors (8053 MB) sd 2:0:0:1: [sdc] Write Protect is off sd 2:0:0:1: [sdc] Mode Sense: 37 00 00 08 sd 2:0:0:1: [sdc] Assuming drive cache: write through sdc: sdc1 sdc: p1 exceeds device capacity sd 2:0:0:1: [sdc] Attached SCSI removable disk sd 2:0:0:1: Attached scsi generic sg2 type 0 usb-storage: device scan complete attempt to access beyond end of device sdc: rw=0, want=15758216, limit=15728160 Buffer I/O error on device sdc1, logical block 1968752 attempt to access beyond end of device sdc: rw=0, want=15758216, limit=15728160 Buffer I/O error on device sdc1, logical block 1968752 attempt to access beyond end of device sdc: rw=0, want=15758328, limit=15728160 Buffer I/O error on device sdc1, logical block 1968766 attempt to access beyond end of device sdc: rw=0, want=15758328, limit=15728160 Buffer I/O error on device sdc1, logical block 1968766 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 Buffer I/O error on device sdc1, logical block 1968767 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 attempt to access beyond end of device sdc: rw=0, want=15758280, limit=15728160 attempt to access beyond end of device sdc: rw=0, want=15758328, limit=15728160 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 attempt to access beyond end of device sdc: rw=0, want=15758336, limit=15728160 -- Stefan Richter -=====-=-=== =-== ==--- http://arcgraph.de/sr/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
