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authorLi Jun <jun.li@freescale.com>2015-07-09 10:18:47 +0300
committerFelipe Balbi <balbi@ti.com>2015-07-29 17:59:21 +0300
commitd1606dfb98e59221332704c05f5908d9116456ab (patch)
tree81dde09c5fbaca2bcadf7acfec29205787ec185a /include/linux/usb
parentb0930d4cafb487a663ac6780a0369d1a0f461bc2 (diff)
downloadlinux-d1606dfb98e59221332704c05f5908d9116456ab.tar.xz
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 <jun.li@freescale.com> Reviewed-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/gadget.h4
1 files changed, 4 insertions, 0 deletions
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 */