From 958e8741bf9ff5d0f0b82b7cef578e96c764a288 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 9 Apr 2002 12:14:34 -0700
Subject: [PATCH] USB: add driver for the USB debug devices

It's a simple usb-serial driver that just creates a tty device to read
and write from.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/Kconfig     | 11 ++++++
 drivers/usb/serial/Makefile    |  1 +
 drivers/usb/serial/usb_debug.c | 65 ++++++++++++++++++++++++++++++++++
 3 files changed, 77 insertions(+)
 create mode 100644 drivers/usb/serial/usb_debug.c

diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 2a8dd4cc943d..2f4d303ee36f 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -554,6 +554,17 @@ config USB_SERIAL_OMNINET
 	  To compile this driver as a module, choose M here: the
 	  module will be called omninet.
 
+config USB_SERIAL_DEBUG
+	tristate "USB Debugging Device"
+	depends on USB_SERIAL
+	help
+	  Say Y here if you have a USB debugging device used to recieve
+	  debugging data from another machine.  The most common of these
+	  devices is the NetChip TurboCONNECT device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called usb-debug.
+
 config USB_EZUSB
 	bool
 	depends on USB_SERIAL_KEYSPAN_PDA || USB_SERIAL_XIRCOM || USB_SERIAL_KEYSPAN || USB_SERIAL_WHITEHEAT
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index a5047dc599bb..61166ad450e6 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_USB_SERIAL_BELKIN)			+= belkin_sa.o
 obj-$(CONFIG_USB_SERIAL_CP2101)			+= cp2101.o
 obj-$(CONFIG_USB_SERIAL_CYBERJACK)		+= cyberjack.o
 obj-$(CONFIG_USB_SERIAL_CYPRESS_M8)		+= cypress_m8.o
+obj-$(CONFIG_USB_SERIAL_DEBUG)			+= usb_debug.o
 obj-$(CONFIG_USB_SERIAL_DIGI_ACCELEPORT)	+= digi_acceleport.o
 obj-$(CONFIG_USB_SERIAL_EDGEPORT)		+= io_edgeport.o
 obj-$(CONFIG_USB_SERIAL_EDGEPORT_TI)		+= io_ti.o
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
new file mode 100644
index 000000000000..257a5e436873
--- /dev/null
+++ b/drivers/usb/serial/usb_debug.c
@@ -0,0 +1,65 @@
+/*
+ * USB Debug cable driver
+ *
+ * Copyright (C) 2006 Greg Kroah-Hartman <greg@kroah.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>
+
+static struct usb_device_id id_table [] = {
+	{ USB_DEVICE(0x0525, 0x127a) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver debug_driver = {
+	.name =		"debug",
+	.probe =	usb_serial_probe,
+	.disconnect =	usb_serial_disconnect,
+	.id_table =	id_table,
+	.no_dynamic_id = 	1,
+};
+
+static struct usb_serial_driver debug_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"debug",
+	},
+	.id_table =		id_table,
+	.num_interrupt_in =	NUM_DONT_CARE,
+	.num_bulk_in =		NUM_DONT_CARE,
+	.num_bulk_out =		NUM_DONT_CARE,
+	.num_ports =		1,
+};
+
+static int __init debug_init(void)
+{
+	int retval;
+
+	retval = usb_serial_register(&debug_device);
+	if (retval)
+		return retval;
+	retval = usb_register(&debug_driver);
+	if (retval)
+		usb_serial_deregister(&debug_device);
+	return retval;
+}
+
+static void __exit debug_exit(void)
+{
+	usb_deregister(&debug_driver);
+	usb_serial_deregister(&debug_device);
+}
+
+module_init(debug_init);
+module_exit(debug_exit);
+MODULE_LICENSE("GPL");