Re: [Linux-usb-users] Re: Problems accessing USB Mass Storage

[Thomas Dodd <ted@cypress.com>]

Mark C wrote:
> [root@stimpy mark]# dd if=/dev/sda of=tmp/tmp.img skip=50 \
> bs=1k                                                                                                         dd: reading `/dev/sda': Input/output error

That's correct.

> Then the output of dmesg:
> 
> SCSI device (ioctl) reports ILLEGAL REQUEST.
> SCSI device sda: 16384 512-byte hdwr sectors (8 MB)
> sda: test WP failed, assume Write Enabled
>  sda: I/O error: dev 08:00, sector 0
>  I/O error: dev 08:00, sector 0
>  unable to read partition table
>  I/O error: dev 08:00, sector 96

That's what I expected. I didn't help.


Sector 96 is a little odd.  50 1K blocks
should be sector 99. (counting starts at zero)

I wonder why 96 is accessed...

This is really starting to look like it's
*NOT* really a Mass Storage Class device,
just claiming to be. (black list time?)

I noticed the windows driver setup several
other interfaces, like audio and VfW (video).

Best sugestion for now is buy 1) a memory card,
2) a card reader that works there are several.

It probably doesn't use the internal memory if a card
is loaded, but you'd have to read the manul/test to
find out. 8M isn't much room for pics at 1280x1024
any way :)


	-Thomas