i2c-tiny-usb: New VID/PID pair

I have recently bought some USB PIDs from EZPrototypes for my USB projects
and one will be for the i2c-tiny-usb. I have not yet started to use the new 
one in the official i2c-tiny-usb firmware since i think it makes sense to get 
the change into the kernel before releasing a modified firmware.

This patch adds support for the EZPrototypes USB vid/pid pair used in later
i2c-tiny-usb firmware versions (avrusb v1.06 and up, usbtiny v2.06 and up).
Signed-off-by: Till Harbaum <Till@Harbaum.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/i2c/busses/i2c-tiny-usb.c

@@ -131,11 +131,15 @@ static const struct i2c_algorithm usb_algorithm = {
 
 /* ----- begin of usb layer ---------------------------------------------- */
 
-/* The usb i2c interface uses a vid/pid pair donated by */
-/* Future Technology Devices International Ltd. */
+/*
+ * Initially the usb i2c interface uses a vid/pid pair donated by
+ * Future Technology Devices International Ltd., later a pair was
+ * bought from EZPrototypes
+ */
 static struct usb_device_id i2c_tiny_usb_table [] = {
-	{ USB_DEVICE(0x0403, 0xc631) },
-	{ }			/* Terminating entry */
+	{ USB_DEVICE(0x0403, 0xc631) },   /* FTDI */
+	{ USB_DEVICE(0x1c40, 0x0534) },   /* EZPrototypes */
+	{ }                               /* Terminating entry */
 };
 
 MODULE_DEVICE_TABLE(usb, i2c_tiny_usb_table);