The Pirelli DP-L10 mobile is sold under various brand names. One, already
supported by cp210x, is the T-COM TC300. Here is the lsusb for that version:
-------------------------------------------------------------------
Bus 001 Device 002: ID 0489:e000 Foxconn / Hon Hai T-Com TC 300
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0489 Foxconn / Hon Hai
  idProduct          0xe000 T-Com TC 300
  bcdDevice            1.00
  iManufacturer           1 Silicon Labs
  iProduct                2 TC 300
  iSerial                 3 0001
    [snip]
---------------------------------------------------------------------------

However the native Pirelli DP-L10 is not supported:
------------------------------------------------------------------
Bus 001 Device 003: ID 0489:e003 Foxconn / Hon Hai Pirelli DP-L10
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0489 Foxconn / Hon Hai
  idProduct          0xe003 Pirelli DP-L10
  bcdDevice            1.00
  iManufacturer           1 Silicon Labs
  iProduct                2 DP-L10
  iSerial                 3 0001
    [snip]
-------------------------------------------------------------------------

All that is required is an extra USB_DEVICE entry:

{ USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM
+Mobile */

The patch adds that entry. Tested under 2.6.36-rc2 from git.
Signed-off-by: NA E Lawrence <lawrence_a_e@ntlworld.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>