Hi, I found this problem (the hard way - through stupid data loss by not checking things before erasing my memory stick) while on holiday. I have been able to reproduce it using kernel 2.4.0 and kernel 2.4.2. The camera is a Sony Cybershot DSC-F505. The laptop is a Sony Vaio PCG-505G. I am using the usb-storage module to mount my camera as a filesystem on the machine, then copying data off of the memory sticks. I have 2 16MB Memory sticks. I have also tried this with usb-storage compiled into my kernel, not as a module, and in that case, once I umount /camera and swap memory sticks, I can't remount it. It says something to the effect of incorrect major or minor device number. All the tests and the output below are using the usb-storage stuff as a module. When I power up the camera I get the following message : Vendor: Sony Model: DSC - F505 Rev: 1.06 Type: Direct Access ANSI SCSI revision: 02 Detected scsi removable disk sda at scsi0, channel 0, id0, lun 0 usb-uhci.c: interrupt, status 3, frame #184 usb-uhci.c: interrupt, status 3, frame #187 sda: test WP failed, assume Write Protected When I mount it, I get the following output maggie# mount /camera mount: block device /dev/sda1 is write protected, mounting read-only usb-uhci.c: interrupt, status 3, frame #35 usb-uhci.c: interrupt, status 3, frame #37 If I have 2 memory sticks with data on them and need to get the data to my machine before clearing the memory sticks, this is the procedure that I normally use : Insert 1st memory stick Power up camera modprobe usb-storage mount /dev/sda1 /camera mkdir 1 cp /camera/dcim/100msdcf/* 1 umount /camera mkdir 2 Swap memory sticks so that now the 2nd stick is in the camera, and power back on. mount /dev/sda1 /camera cp /camera/dcim/100msdcf/* 2 umount /camera All of the pictures from the 1st memory stick copy fine. Their file sizes match the sizes of the files on the memory stick. The first 22 pictures of the 2nd memory stick copy fine. All files after that (dsc00023.jpg - dsc000??.jpg) are empty files (0 bytes). If I rmmod usb-storage, modprobe usb-storage and try again, it works fine. _BUT_ I have to rmmod usb-storage before swapping sticks. This is only really an inconvinience, and now that I know about it, I can work around it, but I thought that someone should know in case this is a bug. Also, just out of curiosity, why does the Sony Cybershot mount read-only? The Fujitsu finepix range all mount read-write, and writing to the flash seems to work ok. Is this because the Cybershot is using a non-standard interface? TIA, -- --Wayne-- I laugh in the face of danger... | [EMAIL PROTECTED] Then I run and hide until it goes away! | www.penguinpowered.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
