If you read the FAQ you'll discover that USB Storage isn't supported in
the 2.2 kernel.
On Sat, 9 Nov 2002, Julio H. Toloza wrote:
> Hi,
>
> I have linux box with kernel 2.2.20, which I've compiled with USB support
> and the (experimental) usb-storage module. In order to get my Sony DSC P51
> properly detected, I followed several hints I found in this mail list concerning
> the use of this camera with kernel 2.4.17. So I've modified usb-storage.c by
> adding the following lines
>
> { 0x054c, 0x0010, 0x0410,
> "Sony DSC-P51", US_SC_SCSI, US_PR_CB,
> US_FL_SINGLE_LUN | US_FL_START_STOP | US_FL_MODE_XLATE |
>US_FL_ALT_LENGTH},
>
> to the list of devices recognized. After recompiling the kernel, I'vet got my
> camera well detected. So I can read the files from the camera. But alas! I can't
> delete them. From /var/log/messages I get
>
> Nov 9 13:52:50 cucaracha kernel: hub.c: USB new device connect on bus2/2, assigned
>device number 2
> Nov 9 13:52:50 cucaracha kernel: usb.c: USB new device connect, assigned device
>number 2
> Nov 9 13:52:50 cucaracha kernel: scsi1 : SCSI emulation for USB Mass Storage devices
> Nov 9 13:52:50 cucaracha kernel: scsi : 2 hosts.
> Nov 9 13:52:50 cucaracha kernel: Vendor: Sony Model: Sony DSC Rev:
>4.10
> Nov 9 13:52:50 cucaracha kernel: Type: Direct-Access ANSI
>SCSI revision: 02
> Nov 9 13:52:50 cucaracha kernel: Detected scsi removable disk sda at scsi1, channel
>0, id 0, lun 0
> Nov 9 13:52:50 cucaracha kernel: SCSI device sda: hdwr sector= 512 bytes. Sectors=
>31680 [15 MB] [0.0 GB]
> Nov 9 13:52:50 cucaracha kernel: usb-uhci.c: interrupt, status 3, frame# 1426
> Nov 9 13:52:50 cucaracha kernel: sda: test WP failed, assume Write Protected
> Nov 9 13:52:50 cucaracha kernel: sda: sda1
> Nov 9 13:53:28 cucaracha kernel: usb.c: USB disconnect on device 2
>
> So the camera is assumed to the be Write Protected. Same messages appear with
> kernel 2.4.17, but the camera is assumed to be Write Enable (and then everybody
> is happy). So the question is: Does anydoby know how to make the kernel
> (2.2.20) assume that the device is Write Enabled?
>
> Thanks a lot.
>
> Julio Hugo Toloza
> Physics Department
> Virginia Polytechnic Institute and State University
> Blacksburg, VA 24061-0435, USA
> E-mail: [EMAIL PROTECTED]
>
>
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