diff options
| author | Mike Lockwood <lockwood@android.com> | 2010-06-23 08:20:59 -0400 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:38:06 -0800 |
| commit | f0dc4ebd035a22b6f6ac01087dc8a4176166ce8a (patch) | |
| tree | a43f4f868d7778be8c3644e7578e8a70c261762b /include/linux/usb/composite.h | |
| parent | c386e49d9c9de1069be3d6636b0e9d5f053afe83 (diff) | |
USB: gadget: composite: Add userspace notifications for USB state changes
Add switch to notify current USB configuration. This can be used to detect
USB connect and disconnect events.
Broadcast a change via the usb_composite class when a USB function is
enabled or disabled.
Rename usb_function.hidden to usb_function.disabled.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Diffstat (limited to 'include/linux/usb/composite.h')
| -rw-r--r-- | include/linux/usb/composite.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 9bb851fb5a0e..f9ca73feb9ea 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -36,6 +36,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/switch.h> /* * USB function drivers should return USB_GADGET_DELAYED_STATUS if they @@ -117,7 +118,9 @@ struct usb_function { struct usb_descriptor_header **ss_descriptors; struct usb_configuration *config; - int hidden; + + /* disabled is zero if the function is enabled */ + int disabled; /* REVISIT: bind() functions can be marked __init, which * makes trouble for section mismatch analysis. See if @@ -160,6 +163,8 @@ int usb_function_activate(struct usb_function *); int usb_interface_id(struct usb_configuration *, struct usb_function *); +void usb_function_set_enabled(struct usb_function *, int); + int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f, struct usb_ep *_ep); @@ -369,6 +374,8 @@ struct usb_composite_dev { /* protects deactivations and delayed_status counts*/ spinlock_t lock; + + struct switch_dev sdev; }; extern int usb_string_id(struct usb_composite_dev *c); |