[patch 4/5] introduction of usb_anchor and overhaul of usb-skeleton

Hi,

this patch set introduces usb_anchor and uses it to implement all modern
APIs in the skeleton driver.

- implementation of pre/post_reset

	Regards
		Oliver
Signed-off-by: Oliver Neukum <[email protected]>
----

--- linux-2.6.22-rc2/drivers/usb/usb-skeleton.c.2	2007-05-25 13:08:11.000000000 +0200
+++ linux-2.6.22-rc2-autosuspend/drivers/usb/usb-skeleton.c	2007-05-25 13:10:41.000000000 +0200
@@ -476,12 +476,31 @@ static int skel_resume (struct usb_inter
 	return 0;
 }
 
+static void skel_pre_reset(struct usb_interface *intf)
+{
+	struct usb_skel *dev = usb_get_intfdata(intf);
+
+	mutex_lock(&dev->io_mutex);
+	skel_draw_down(dev);
+}
+
+static void skel_post_reset(struct usb_interface *intf)
+{
+	struct usb_skel *dev = usb_get_intfdata(intf);
+
+	/* we are sure no URBs are active - no locking needed */
+	dev->errors = -EPIPE;
+	mutex_unlock(&dev->io_mutex);
+}
+
 static struct usb_driver skel_driver = {
 	.name =		"skeleton",
 	.probe =	skel_probe,
 	.disconnect =	skel_disconnect,
 	.suspend =	skel_suspend,
 	.resume =	skel_resume,
+	.pre_reset =	skel_pre_reset,
+	.post_reset =	skel_post_reset,
 	.id_table =	skel_table,
 	.supports_autosuspend = 1,
 };

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