diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2009-03-19 14:14:17 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 16:20:45 -0700 |
| commit | 8942939a6c83f34615de5ae041cc9ca846923f94 (patch) | |
| tree | 4d3715a1f4ddca640ed60efb5fffabfcc785538e /include | |
| parent | e1e609be49c9d345e8b67a122a7cdae48ad27c7e (diff) | |
USB: gadget: composite device-level suspend/resume hooks
Address one open question in the composite gadget framework:
Yes, we should have device-level suspend/resume callbacks
in addition to the function-level ones. We have at least one
scenario (with gadget zero in OTG test mode) that's awkward
to handle without it.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/composite.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 935c380ffe4..acd7b0f06c8 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -244,6 +244,10 @@ int usb_add_config(struct usb_composite_dev *, * value; it should return zero on successful initialization. * @unbind: Reverses @bind(); called as a side effect of unregistering * this driver. + * @suspend: Notifies when the host stops sending USB traffic, + * after function notifications + * @resume: Notifies configuration when the host restarts USB traffic, + * before function notifications * * Devices default to reporting self powered operation. Devices which rely * on bus powered operation should report this in their @bind() method. @@ -268,6 +272,10 @@ struct usb_composite_driver { int (*bind)(struct usb_composite_dev *); int (*unbind)(struct usb_composite_dev *); + + /* global suspend hooks */ + void (*suspend)(struct usb_composite_dev *); + void (*resume)(struct usb_composite_dev *); }; extern int usb_composite_register(struct usb_composite_driver *); |