diff options
Diffstat (limited to 'include/linux/usb/gadget.h')
| -rw-r--r-- | include/linux/usb/gadget.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 18979cfb6d6..fe50912585f 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -132,8 +132,9 @@ struct usb_ep_ops { * @maxpacket:The maximum packet size used on this endpoint. The initial * value can sometimes be reduced (hardware allowing), according to * the endpoint descriptor used to configure the endpoint. - * @driver_data:for use by the gadget driver. all other fields are - * read-only to gadget drivers. + * @driver_data:for use by the gadget driver. + * @desc: endpoint descriptor. This pointer is set before the endpoint is + * enabled and remains valid until the endpoint is disabled. * * the bus controller driver lists all the general purpose endpoints in * gadget->ep_list. the control endpoint (gadget->ep0) is not in that list, @@ -146,6 +147,7 @@ struct usb_ep { const struct usb_ep_ops *ops; struct list_head ep_list; unsigned maxpacket:16; + const struct usb_endpoint_descriptor *desc; }; /*-------------------------------------------------------------------------*/ @@ -154,11 +156,8 @@ struct usb_ep { * usb_ep_enable - configure endpoint, making it usable * @ep:the endpoint being configured. may not be the endpoint named "ep0". * drivers discover endpoints through the ep_list of a usb_gadget. - * @desc:descriptor for desired behavior. caller guarantees this pointer - * remains valid until the endpoint is disabled; the data byte order - * is little-endian (usb-standard). * - * when configurations are set, or when interface settings change, the driver + * When configurations are set, or when interface settings change, the driver * will enable or disable the relevant endpoints. while it is enabled, an * endpoint may be used for i/o until the driver receives a disconnect() from * the host or until the endpoint is disabled. @@ -173,10 +172,9 @@ struct usb_ep { * * returns zero, or a negative error code. */ -static inline int usb_ep_enable(struct usb_ep *ep, - const struct usb_endpoint_descriptor *desc) +static inline int usb_ep_enable(struct usb_ep *ep) { - return ep->ops->enable(ep, desc); + return ep->ops->enable(ep, ep->desc); } /** |