OZ/GPE: usb storage configuration on C1000

Hi all,

I just bought a SL C1000 and installed OZ/GPE on it.

Now I wish to connect it via USB to my notebook, and "see" it as a mass
storage device.
I configured it in "USB settings" as Storage mode and CF/SD Card Reader
as behaviour.

Running dmesg logs:


g_file_storage gadget-lun0: unable to open backing file: /dev/hda



When I connect the USB cable, the notebook logs:


Sep  3 03:14:55 localhost kernel: usb 3-1.3: new full speed USB device
using uhci_hcd and address 4
Sep  3 03:14:56 localhost kernel: usb 3-1.3: device descriptor read/64,
error -71
Sep  3 03:14:56 localhost kernel: usb 3-1.3: device descriptor read/64,
error -71
Sep  3 03:14:56 localhost kernel: usb 3-1.3: new full speed USB device
using uhci_hcd and address 5
Sep  3 03:14:56 localhost kernel: usb 3-1.3: device descriptor read/64,
error -71
Sep  3 03:14:56 localhost kernel: usb 3-1.3: device descriptor read/64,
error -71
Sep  3 03:14:56 localhost kernel: usb 3-1.3: new full speed USB device
using uhci_hcd and address 6
Sep  3 03:14:57 localhost kernel: usb 3-1.3: device not accepting
address 6, error -71
Sep  3 03:14:57 localhost kernel: usb 3-1.3: new full speed USB device
using uhci_hcd and address 7
Sep  3 03:14:57 localhost kernel: usb 3-1.3: device not accepting
address 7, error -71



I then created a file "transfile" and formatted it:


dd if=/dev/zero of=transfile bs=1024k count=8
mke2fs transfile


When configured in USB Settings, dmesg logs:


g_file_storage gadget: File-backend Storage Gadget: version 28 november
2005
g_file_storage gadget: Number of LUNs=1
g_file_storage gadget-lun0: ro=1, file: /home/user/transfile



And the notebook logs (sorry, this is long):


Sep  3 03:21:12 localhost kernel: usb 3-1.3: new full speed USB device
using uhci_hcd and address 8
Sep  3 03:21:12 localhost kernel: usb 3-1.3: configuration #1 chosen
from 1 choice
Sep  3 03:21:12 localhost NetworkManager: <debug
info>^I[1157246472.730466] nm_hal_device_added (): New device added (hal
udi is '/org/freedesktop/Hal/devices/usb_device_525_a4a5_3238204E6F76').
Sep  3 03:21:12 localhost kernel: SCSI subsystem initialized
Sep  3 03:21:12 localhost kernel: Initializing USB Mass Storage
driver...
Sep  3 03:21:12 localhost kernel: scsi0 : SCSI emulation for USB Mass
Storage devices
Sep  3 03:21:12 localhost kernel: usb-storage: device found at 8
Sep  3 03:21:12 localhost kernel: usb-storage: waiting for device to
settle before scanning
Sep  3 03:21:12 localhost kernel: usbcore: registered new driver
usb-storage
Sep  3 03:21:12 localhost kernel: USB Mass Storage support registered.
Sep  3 03:21:12 localhost NetworkManager: <debug
info>^I[1157246472.923105] nm_hal_device_added (): New device added (hal
udi is
'/org/freedesktop/Hal/devices/usb_device_525_a4a5_3238204E6F76_if0').
Sep  3 03:21:12 localhost NetworkManager: <debug
info>^I[1157246472.973637] nm_hal_device_added (): New device added (hal
udi is
'/org/freedesktop/Hal/devices/usb_device_525_a4a5_3238204E6F76_usbraw').
Sep  3 03:21:12 localhost NetworkManager: <debug
info>^I[1157246472.992963] nm_hal_device_added (): New device added (hal
udi is
'/org/freedesktop/Hal/devices/usb_device_525_a4a5_3238204E6F76_if0_scsi_host').
Sep  3 03:21:17 localhost kernel:   Vendor: Linux     Model: File-Stor
Gadget  Rev: 0311
Sep  3 03:21:17 localhost kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Sep  3 03:21:17 localhost kernel: usb-storage: device scan complete
Sep  3 03:21:17 localhost NetworkManager: <debug
info>^I[1157246477.928008] nm_hal_device_added (): New device added (hal
udi is
'/org/freedesktop/Hal/devices/usb_device_525_a4a5_3238204E6F76_if0_scsi_host_scsi_device_lun0').
Sep  3 03:21:17 localhost kernel: SCSI device sda: 16384 512-byte hdwr
sectors (8 MB)
Sep  3 03:21:17 localhost kernel: sda: Write Protect is on
Sep  3 03:21:17 localhost kernel: sda: Mode Sense: 0f 00 80 00
Sep  3 03:21:17 localhost kernel: sda: assuming drive cache: write
through
Sep  3 03:21:17 localhost kernel: SCSI device sda: 16384 512-byte hdwr
sectors (8 MB)
Sep  3 03:21:18 localhost kernel: sda: Write Protect is on
Sep  3 03:21:18 localhost kernel: sda: Mode Sense: 0f 00 80 00
Sep  3 03:21:18 localhost kernel: sda: assuming drive cache: write
through
Sep  3 03:21:18 localhost kernel:  sda: unknown partition table
Sep  3 03:21:18 localhost kernel: sd 0:0:0:0: Attached scsi disk sda
Sep  3 03:21:18 localhost kernel: usb 3-1.3: reset full speed USB device
using uhci_hcd and address 8
Sep  3 03:21:49 localhost last message repeated 151 times



There are no partitions, the device doesn't get created (I have
no /dev/sd*)

I wish to know if there are some settings to use another device (and
not /dev/hda) on GPE.

I installed a 4 Gb SD and moved /home onto it (putting /root back
on /dev/mtdblock2).
I mounted /dev/mtdblock3 on /flash and cleaned it up, and I wish to use
it (or a subdirectory in /home/user) as storage space.

I have found no documentation on this feature. :(

Thank you very much for any help.



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