diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/usb/gadget.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 7c18c70df503..3f572d5dc16d 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -649,6 +649,7 @@ struct usb_gadget_ops { int (*vbus_session) (struct usb_gadget *, int is_active); int (*vbus_draw) (struct usb_gadget *, unsigned mA); int (*pullup) (struct usb_gadget *, int is_on); + int (*restart)(struct usb_gadget *); int (*ioctl)(struct usb_gadget *, unsigned code, unsigned long param); void (*get_config_params)(struct usb_dcd_config_params *); @@ -1049,6 +1050,20 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget) } /** + * usb_gadget_restart - software-controlled reset of USB peripheral connection + * @gadget:the peripheral being reset + * + * Informs controller driver for Vbus LOW followed by Vbus HIGH notification. + * This performs full hardware reset and re-initialization. + */ +static inline int usb_gadget_restart(struct usb_gadget *gadget) +{ + if (!gadget->ops->restart) + return -EOPNOTSUPP; + return gadget->ops->restart(gadget); +} + +/** * usb_gadget_deactivate - deactivate function which is not ready to work * @gadget: the peripheral being deactivated * |