Currently gadget drivers, which do, allocate resources for
functions during configuration bind, and free them during
function unbind. Which isn't very correct, even though it
works for now.
Provide a hook in 'struct usb_configuration' as a way for
configurations to save pointer to resources allocated
during 'bind', which might come handy during 'unbind'.
Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
---
include/linux/usb/composite.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 3d29a7d..e94339d 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -219,6 +219,8 @@ struct usb_configuration {
struct usb_composite_dev *cdev;
/* private: */
+ /* Gadget driver specific data, typically for use at unbind */
+ void *data;
/* internals */
struct list_head list;
struct list_head functions;
--
1.7.4.1
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