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| author | Felipe Balbi <balbi@ti.com> | 2011-12-15 13:31:48 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-02-28 14:48:23 +0200 |
| commit | a698908d3b3be915ac20cd37faeff1216f6b4fe8 (patch) | |
| tree | 208d35c5bc9d49ab5fcb65dd380429cc532426bd /include | |
| parent | c15e03e1553d8fb334de26727b0edadd582a46e7 (diff) | |
| download | lwn-a698908d3b3be915ac20cd37faeff1216f6b4fe8.tar.gz lwn-a698908d3b3be915ac20cd37faeff1216f6b4fe8.zip | |
usb: gadget: add generic map/unmap request utilities
such utilities are currently duplicated on all UDC
drivers basically with the same structure. Let's group
all implementations into one generic implementation
and get rid of that duplication.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/gadget.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index da653b5c7134..9517466ababb 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -950,6 +950,16 @@ static inline void usb_free_descriptors(struct usb_descriptor_header **v) /*-------------------------------------------------------------------------*/ +/* utility to simplify map/unmap of usb_requests to/from DMA */ + +extern int usb_gadget_map_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in); + +extern void usb_gadget_unmap_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in); + +/*-------------------------------------------------------------------------*/ + /* utility wrapping a simple endpoint selection policy */ extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, |