Alan Stern wrote: > On Sat, 29 Sep 2007, Stefan Richter wrote: >> I've got the mentioned MP3 player with 4GB built-in flash memory and an
. . . . . . . . . . . . . . . . . . . . . ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ >> SD/SDHC card slot. The player worked under Linux with the shipped >> firmware, but in order to make its card slot SDHC compatible I installed >> their current firmware v2.50. The USB mass storage driver of that >> firmware still seems to work on Windows (shows built-in flash and card >> slot as two separate drive letters), [...] >> With card slot empty: > ... >> sd 71:0:0:0: [sdd] 1 512-byte hardware sectors (0 MB) > ... >> Can't do much with that. > > Indeed. Without a card in the slot you can't do much with it, no > matter what shows up in the log. Before the firmware update, the D2 was accessible as 4GB storage device under Linux. I couldn't test then with an additional card because I hadn't an SD card. I even used Linux to upload the firmware update to the built-in flash. ... >> Then I can at least access the SDHC card. > > What makes you think there's a problem? Evidently the partition table > is goofy, but you can easily repartition the card. It sure looks like > everything is working correctly. Windows 2k and OS X show two harddisks if a card is inserted. Without card, OS X shows one harddisk, while Windows 2k still exposes two drives of which one is empty (like it does with empty USB card readers). BTW, Linux doesn't exhibit the "access beyond end of device" behaviour if I put the card in a regular USB SDHC card reader. The reader reports the card sizes as 15,758,336 sectors, while the Cowon D2 states the card size as 15,728,160 sectors --- 30,176 sectors less. ... >> $ ls /sys/bus/usb/devices/1-8*/ ... > There's not much point in these directory listings. The names of the > files don't convey any useful information; what matters is their > contents. $ cd /sys/bus/usb/devices/1-8\:1.0/ $ echo ep* ep_02 ep_81 ep_83 $ cat ep*/type Bulk Bulk Interrupt So there are two "Bulk" endpoints. Does this matter? The SCSI host associated with device 1-8:1.0 contains one target and the target contains one logical unit. I'd expect to get two logical units, perhaps two targets, perhaps two SCSI hosts. -- 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
