[Ifp-driver-common] IFP-100 UMS

[Eli S. <es_...@ya...>]

hello to all the list!
I purchased an IFP-100 and installed the UMS Firmware V3.06 to see the
iRiver as a storage device in linux. 
I loaded the kernel module: modprobe usb-storage
once connected in /var/log/messages I see:
kernel: hub.c: new USB device 00:04.2-2, assigned address 3
kernel: usb.c: USB device 3 (vend/prod 0x4102/0x1001) is not claimed by
any active driver.
/etc/hotplug/usb.agent: ... no modules for USB product 4102/1001/100

cat /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 Root Hub
S:  SerialNumber=d400
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=01 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 1.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=4102 ProdID=1001 Rev= 1.00
S:  Manufacturer=iRiver, Limited.
S:  Product=iRiver Internet Audio Player IFP-100
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=  2mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms

The problem is that I don't see any /dev/sdx device hence I cannot mount
it.
What should I do?
lsmod |grep sg
sg                     35068   0  (autoclean)
scsi_mod               93344   5  [usb-storage sg sr_mod ide-scsi sd_mod
aic7xxx]
this show the sg module is loaded

I have /dev/sg and /dev/sg0 but I cannot mount them
mount -t vfat /dev/sg /mnt/iriver
mount: /dev/sg non ?un dispositivo di blocchi

Thank you in advance for any help