USB: serial: add support Infineon modem USB flashloader driver

If you want to download Infineon modem via USB, this Infineon USB
flashloader driver is required.

Signed-off-by: Wei Shuai <cpuwolf@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/serial/flashloader.c b/drivers/usb/serial/flashloader.c
new file mode 100644
index 0000000..e6f5c10
--- /dev/null
+++ b/drivers/usb/serial/flashloader.c
@@ -0,0 +1,39 @@
+/*
+ * Infineon Flashloader driver
+ *
+ * Copyright (C) 2013 Wei Shuai <cpuwolf@gmail.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License version
+ *	2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/uaccess.h>
+
+static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(0x8087, 0x0716) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_serial_driver flashloader_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"flashloader",
+	},
+	.id_table =		id_table,
+	.num_ports =		1,
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+	&flashloader_device, NULL
+};
+
+module_usb_serial_driver(serial_drivers, id_table);
+MODULE_LICENSE("GPL");