[PATCH] added class support to istallion.c

Here is a patch to add class support to the Stallion Intelligent multiport
serial driver.

drivers/char/istallion.c

@@ -40,6 +40,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/devfs_fs_kernel.h>
+#include <linux/device.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -795,6 +796,8 @@ static int	stli_timeron;
 
 /*****************************************************************************/
 
+static struct class_simple *istallion_class;
+
 #ifdef MODULE
 
 /*
@@ -853,9 +856,12 @@ static void __exit istallion_module_exit(void)
 		return;
 	}
 	put_tty_driver(stli_serial);
-	for (i = 0; i < 4; i++)
+	for (i = 0; i < 4; i++) {
 		devfs_remove("staliomem/%d", i);
+		class_simple_device_remove(MKDEV(STL_SIOMEMMAJOR, i));
+	}
 	devfs_remove("staliomem");
+	class_simple_destroy(istallion_class);
 	if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
 		printk("STALLION: failed to un-register serial memory device, "
 			"errno=%d\n", -i);
@@ -5311,10 +5317,13 @@ int __init stli_init(void)
 				"device\n");
 
 	devfs_mk_dir("staliomem");
+	istallion_class = class_simple_create(THIS_MODULE, "staliomem");
 	for (i = 0; i < 4; i++) {
 		devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
 			       S_IFCHR | S_IRUSR | S_IWUSR,
 			       "staliomem/%d", i);
+		class_simple_device_add(istallion_class, MKDEV(STL_SIOMEMMAJOR, i), 
+				NULL, "staliomem/%d", i);
 	}
 
 /*