Hi,

I recently got hold of a Sony DSC-F505V camera. I connected it to my PC
through the USB port, and have a strange result. The camera is
recognized as a USB mass storage device:

kernel: hub.c: USB new device connect on bus1/1, assigned device number
2
kernel: Manufacturer: Sony
kernel: Product: Sony DSC
kernel: scsi1 : SCSI emulation for USB Mass Storage devices
kernel:   Vendor: Sony      Model: Sony DSC          Rev: 2.10 
kernel:   Type:   Direct-Access                      ANSI SCSI revision:
02
kernel: Detected scsi removable disk sdb at scsi1, channel 0, id 0, lun
0
kernel: SCSI device sdb: 126848 512-byte hdwr sectors (65 MB)
kernel: sdb: test WP failed, assume Write Protected
kernel:  sdb:<7>usb-storage: queuecommand() called
kernel:  sdb1

I can mount it read-only, say:

mount -r -t vfat /dev/sdb1 /mnt/camera

It seems to be OK. But when I use it as a drive (e.g. copy the pictures
from it), it hangs at one point, so that I can't even kill the process
which is accessing the camera (not even with kill -9).

The contents of /proc/bus/usb/devices:

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI-alt Root Hub
S:  SerialNumber=e000
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=054c ProdID=0010 Rev= 2.10
S:  Manufacturer=Sony
S:  Product=Sony DSC
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  2mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=ff Prot=01
Driver=usb-storage
E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=   8 Ivl=255ms

I'm using kernel 2.4.4, usb support compiled as modules.

Any help would be highly appreciated.


Akos

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