USB: Force unbinding of drivers lacking reset_resume or other methods
This patch (as1024) takes care of a FIXME issue: Drivers that don't
have the necessary suspend, resume, reset_resume, pre_reset, or
post_reset methods will be unbound and their interface reprobed when
one of the unsupported events occurs.
This is made slightly more difficult by the fact that bind operations
won't work during a system sleep transition. So instead the code has
to defer the operation until the transition ends.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3cc8db5..5811c5d 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -160,6 +160,7 @@
unsigned is_active:1; /* the interface is not suspended */
unsigned sysfs_files_created:1; /* the sysfs attributes exist */
unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */
+ unsigned needs_binding:1; /* needs delayed unbind/rebind */
struct device dev; /* interface specific device info */
struct device *usb_dev;