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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
| commit | 3e10e879a8c334a5927d800a3663a24d562cfa31 (patch) | |
| tree | 5d18bc7e38c986a044e99aa0d0a4aff4931ec7d0 /include/linux/usb/composite.h | |
| parent | 98d9c66ab07471006fd7910cb16453581c41a3e7 (diff) | |
| parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) | |
| download | kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.tar.gz kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.tar.xz kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.zip | |
Merge branch 'linus' into tracing-v28-for-linus-v3
Conflicts:
init/main.c
kernel/module.c
scripts/bootgraph.pl
Diffstat (limited to 'include/linux/usb/composite.h')
| -rw-r--r-- | include/linux/usb/composite.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index c932390c6da..935c380ffe4 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -130,6 +130,9 @@ struct usb_function { int usb_add_function(struct usb_configuration *, struct usb_function *); +int usb_function_deactivate(struct usb_function *); +int usb_function_activate(struct usb_function *); + int usb_interface_id(struct usb_configuration *, struct usb_function *); /** @@ -316,9 +319,13 @@ struct usb_composite_dev { struct usb_composite_driver *driver; u8 next_string_id; - spinlock_t lock; + /* the gadget driver won't enable the data pullup + * while the deactivation count is nonzero. + */ + unsigned deactivations; - /* REVISIT use and existence of lock ... */ + /* protects at least deactivation count */ + spinlock_t lock; }; extern int usb_string_id(struct usb_composite_dev *c); |