From d1606dfb98e59221332704c05f5908d9116456ab Mon Sep 17 00:00:00 2001 From: Li Jun Date: Thu, 9 Jul 2015 15:18:47 +0800 Subject: usb: gadget: add usb otg descriptor allocate and init interface Allocate usb otg descriptor and initialize it according to gadget's otg capabilities, if usb_otg_caps is not set, keep settings as current gadget drivers. With this 2 new interfaces, gadget can use usb_otg_descriptor for OTG 1.x, and usb_otg20_descriptor for OTG 2.0 or above, and otg features can be decided by the combination of usb hardware property and driver config. Signed-off-by: Li Jun Reviewed-by: Roger Quadros Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/usb/gadget.h') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index fffceafb6b8c..cea0511a1bc9 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -1092,6 +1092,10 @@ int usb_assign_descriptors(struct usb_function *f, struct usb_descriptor_header **ss); void usb_free_all_descriptors(struct usb_function *f); +struct usb_descriptor_header *usb_otg_descriptor_alloc( + struct usb_gadget *gadget); +int usb_otg_descriptor_init(struct usb_gadget *gadget, + struct usb_descriptor_header *otg_desc); /*-------------------------------------------------------------------------*/ /* utility to simplify map/unmap of usb_requests to/from DMA */ -- cgit v1.2.3