diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index a624e72f81dc39a41bf79236d0f24707251b7c41..da08fcd79d75900b8cc3fcf4fd56900ac22be045 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1357,6 +1357,20 @@ UNUSUAL_DEV(  0x0f19, 0x0105, 0x0100, 0x0100,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_IGNORE_RESIDUE ),
 
+/* Jeremy Katz <katzj@redhat.com>:
+ * The Blackberry Pearl can run in two modes; a usb-storage only mode
+ * and a mode that allows access via mass storage and to its database.
+ * The berry_charge module will set the device to dual mode and thus we
+ * should ignore its native mode if that module is built
+ */
+#ifdef CONFIG_USB_BERRY_CHARGE
+UNUSUAL_DEV(  0x0fca, 0x0006, 0x0001, 0x0001,
+		"RIM",
+		"Blackberry Pearl",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_IGNORE_DEVICE ),
+#endif
+
 /* Reported by Michael Stattmann <michael@stattmann.com> */
 UNUSUAL_DEV(  0x0fce, 0xd008, 0x0000, 0x0000,
 		"Sony Ericsson",