I am having trouble connecting a usb digital cammera. On windows the cammera
behaves as a flash device (like a disk on key) using the generic driver.
Under linux, when I load the usb-storage driver it appears as a usb-storage
device on usb-view, and I see and entry under proc scsi, but sg_scan -i doesn't
recognise it and I can't mount /dev/sda or /dev/sda1 with an error
mount: /dev/sda is not a valid block device
I have a disk on key that works fine with the driver.
I tried loading just about any mtd driver that seemed resonable, but to no avail.
The camera is a cj200 pocket photo advance, don't know the manufacturer (I got
it from someone who got a better one).
Any ideas on how to make it work?
The output on /var/log/messages:
ep 14 22:55:17 litshi kernel: Initializing USB Mass Storage driver...
Sep 14 22:55:17 litshi kernel: usb.c: registered new driver usb-storage
Sep 14 22:55:17 litshi kernel: USB Mass Storage support registered.
Sep 14 22:56:05 litshi kernel: hub.c: new USB device 00:07.2-2, assigned address 2
Sep 14 22:56:05 litshi kernel: scsi1 : SCSI emulation for USB Mass Storage devices
Sep 14 22:56:44 litshi kernel: scsi: device set offline - command error recover
failed: host 1 channel 0 id 0 lun 0
Output of /proc/scsi/usb-storage-0/1:
Host scsi1: usb-storage
Vendor: Unknown
Product: Unknown
Serial Number: None
Protocol: Transparent SCSI
Transport: Bulk
GUID: 076279410000000000000000
Attached: Yes
The relevent entry in /proc/bus/usb/devices:
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0762 ProdID=7941 Rev= 0.00
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
I: If#= 0 Alt= 1 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=82(I) Atr=03(Int.) MxPS= 32 Ivl=2ms
I: If#= 0 Alt= 2 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 16 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 16 Ivl=0ms
E: Ad=82(I) Atr=03(Int.) MxPS= 16 Ivl=3ms
I: If#= 0 Alt= 3 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 8 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 8 Ivl=0ms
E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=4ms
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