From 36045fb77cb8b4043063ea54067907a1afd317b4 Mon Sep 17 00:00:00 2001
From: Arthur Huillet <arthur.huillet@agoctrl.org>
Date: Fri, 22 Apr 2005 15:06:59 -0700
Subject: [PATCH] [PATCH] USB: add HP49G+ Calculator USB Serial support

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/Kconfig  |  9 ++++
 drivers/usb/serial/Makefile |  1 +
 drivers/usb/serial/hp4x.c   | 97 +++++++++++++++++++++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 drivers/usb/serial/hp4x.c

diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index b869076d9c7c..0c4aa00bb39d 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -395,6 +395,15 @@ config USB_SERIAL_PL2303
 	  To compile this driver as a module, choose M here: the
 	  module will be called pl2303.
 
+config USB_SERIAL_HP4X
+        tristate "USB HP4x Calculators support"
+        depends on USB_SERIAL
+        help
+          Say Y here if you want to use an Hewlett-Packard 4x Calculator.
+
+          To compile this driver as a module, choose M here: the
+          module will be called hp4x.
+
 config USB_SERIAL_SAFE
 	tristate "USB Safe Serial (Encapsulated) Driver (EXPERIMENTAL)"
 	depends on USB_SERIAL && EXPERIMENTAL
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 351b81855b18..b0aac47d1959 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_USB_SERIAL_EDGEPORT_TI)		+= io_ti.o
 obj-$(CONFIG_USB_SERIAL_EMPEG)			+= empeg.o
 obj-$(CONFIG_USB_SERIAL_FTDI_SIO)		+= ftdi_sio.o
 obj-$(CONFIG_USB_SERIAL_GARMIN)			+= garmin_gps.o
+obj-$(CONFIG_USB_SERIAL_HP4X)			+= hp4x.o
 obj-$(CONFIG_USB_SERIAL_IPAQ)			+= ipaq.o
 obj-$(CONFIG_USB_SERIAL_IPW)			+= ipw.o
 obj-$(CONFIG_USB_SERIAL_IR)			+= ir-usb.o
diff --git a/drivers/usb/serial/hp4x.c b/drivers/usb/serial/hp4x.c
new file mode 100644
index 000000000000..020f9a15605b
--- /dev/null
+++ b/drivers/usb/serial/hp4x.c
@@ -0,0 +1,97 @@
+/*
+ * HP4x Calculators Serial USB driver
+ *
+ * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net)
+ * Copyright (C) 2001-2004 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 as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ * See Documentation/usb/usb-serial.txt for more information on using this driver
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.00"
+#define DRIVER_DESC "HP4x (48/49) Generic Serial driver"
+
+#define HP_VENDOR_ID 0x03f0
+#define HP49GP_PRODUCT_ID 0x0121
+
+static int debug;
+
+static struct usb_device_id id_table [] = {
+	{ USB_DEVICE(HP_VENDOR_ID, HP49GP_PRODUCT_ID) },
+	{ }					/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver hp49gp_driver = {
+	.owner =	THIS_MODULE,
+	.name =		"HP4X",
+	.probe =	usb_serial_probe,
+	.disconnect =	usb_serial_disconnect,
+	.id_table =	id_table,
+};
+
+static struct usb_serial_device_type hp49gp_device = {
+	.owner =		THIS_MODULE,
+	.name =			"HP4X",
+	.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 hp49gp_init(void)
+{
+	int retval;
+	retval = usb_serial_register(&hp49gp_device);
+	if (retval)
+		goto failed_usb_serial_register;
+	retval = usb_register(&hp49gp_driver);
+	if (retval)
+		goto failed_usb_register;
+	info(DRIVER_DESC " " DRIVER_VERSION);
+	return 0;
+failed_usb_register:
+	usb_serial_deregister(&hp49gp_device);
+failed_usb_serial_register:
+	return retval;
+}
+
+
+static void __exit hp49gp_exit(void)
+{
+	usb_deregister(&hp49gp_driver);
+	usb_serial_deregister(&hp49gp_device);
+}
+
+
+module_init(hp49gp_init);
+module_exit(hp49gp_exit);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
-- 
2.30.2