PATCH: adding set hotplug function to class_simple

[Jon Smirl <jonsmirl@yahoo.com>]

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I'm not sure this made it through the mail problems at sourceforge.
It's a patch to add a set hotplug function to class_simple.

I need this for the DRI driver.

=====
Jon Smirl
jonsmirl@yahoo.com

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===== drivers/base/class_simple.c 1.1 vs edited =====
--- 1.1/drivers/base/class_simple.c	Thu Jan 15 06:06:03 2004
+++ edited/drivers/base/class_simple.c	Fri Jan 23 19:04:55 2004
@@ -170,6 +170,24 @@
 EXPORT_SYMBOL(class_simple_device_add);
 
 /**
+ * class_simple_set_hotplug - set the hotplug callback in the embedded struct class
+ * @cs: pointer to the struct class_simple to hold the pointer
+ * @hotplug: function pointer to the hotplug function
+ *
+ * Implement and set a hotplug function to add environment variables specific to this 
+ * class on the hotplug event.
+ */
+int class_simple_set_hotplug(struct class_simple *cs, 
+	int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size))
+{
+	if ((cs == NULL) || (IS_ERR(cs)))
+		return -ENODEV;
+	cs->class.hotplug = hotplug;
+	return 0;
+}
+EXPORT_SYMBOL(class_simple_set_hotplug);
+	
+/**
  * class_simple_device_remove - removes a class device that was created with class_simple_device_add()
  * @dev: the dev_t of the device that was previously registered.
  *
===== include/linux/device.h 1.113 vs edited =====
--- 1.113/include/linux/device.h	Thu Jan 15 06:05:58 2004
+++ edited/include/linux/device.h	Fri Jan 23 19:06:04 2004
@@ -253,6 +253,8 @@
 extern void class_simple_destroy(struct class_simple *cs);
 extern struct class_device *class_simple_device_add(struct class_simple *cs, dev_t dev, struct device *device, const char *fmt, ...)
 	__attribute__((format(printf,4,5)));
+extern int class_simple_set_hotplug(struct class_simple *, 
+	int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size));
 extern void class_simple_device_remove(dev_t dev);