USB: serial: Add support for ViVOtech ViVOpay devices.

Add support for USB serial interface provided by ViVOtech ViVOpay devices via
new driver vivopay-serial.  Currently only the ViVOpay 8800 device is supported,
but support for similar devices can be added by adding the appropriate device
IDs to the driver.
Signed-off-by: Forest Bond <forest.bond@outpostembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/Kconfig

@@ -600,6 +600,14 @@ config USB_SERIAL_OPTICON
 	  To compile this driver as a module, choose M here: the
 	  module will be called opticon.
 
+config USB_SERIAL_VIVOPAY_SERIAL
+        tristate "USB ViVOpay serial interface driver"
+        help
+          Say Y here if you want to use a ViVOtech ViVOpay USB device.
+
+          To compile this driver as a module, choose M here: the
+          module will be called vivopay-serial.
+
 config USB_SERIAL_DEBUG
 	tristate "USB Debugging Device"
 	help

drivers/usb/serial/Makefile

@@ -55,4 +55,5 @@ obj-$(CONFIG_USB_SERIAL_TI)			+= ti_usb_3410_5052.o
 obj-$(CONFIG_USB_SERIAL_VISOR)			+= visor.o
 obj-$(CONFIG_USB_SERIAL_WHITEHEAT)		+= whiteheat.o
 obj-$(CONFIG_USB_SERIAL_XIRCOM)			+= keyspan_pda.o
+obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL)	+= vivopay-serial.o
 

drivers/usb/serial/vivopay-serial.c

+/*
+ * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2009 Outpost Embedded, LLC
+ */
+
+#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>
+
+
+#define DRIVER_VERSION "v1.0"
+#define DRIVER_DESC "ViVOpay USB Serial Driver"
+
+#define VIVOPAY_VENDOR_ID 0x1d5f
+
+
+static struct usb_device_id id_table [] = {
+	/* ViVOpay 8800 */
+	{ USB_DEVICE(VIVOPAY_VENDOR_ID, 0x1004) },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver vivopay_serial_driver = {
+	.name =			"vivopay-serial",
+	.probe =		usb_serial_probe,
+	.disconnect =		usb_serial_disconnect,
+	.id_table =		id_table,
+	.no_dynamic_id =	1,
+};
+
+static struct usb_serial_driver vivopay_serial_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"vivopay-serial",
+	},
+	.id_table =		id_table,
+	.usb_driver =		&vivopay_serial_driver,
+	.num_ports =		1,
+};
+
+static int __init vivopay_serial_init(void)
+{
+	int retval;
+	retval = usb_serial_register(&vivopay_serial_device);
+	if (retval)
+		goto failed_usb_serial_register;
+	retval = usb_register(&vivopay_serial_driver);
+	if (retval)
+		goto failed_usb_register;
+	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+	    DRIVER_DESC "\n");
+	return 0;
+failed_usb_register:
+	usb_serial_deregister(&vivopay_serial_device);
+failed_usb_serial_register:
+	return retval;
+}
+
+static void __exit vivopay_serial_exit(void)
+{
+	usb_deregister(&vivopay_serial_driver);
+	usb_serial_deregister(&vivopay_serial_device);
+}
+
+module_init(vivopay_serial_init);
+module_exit(vivopay_serial_exit);
+
+MODULE_AUTHOR("Forest Bond <forest.bond@outpostembedded.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");