diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/hcd.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 3b571f1ffbb3..8aaf6872949f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -233,6 +233,11 @@ struct hc_driver { int (*urb_dequeue)(struct usb_hcd *hcd, struct urb *urb, int status); + /* dma support */ + int (*map_urb_for_dma)(struct usb_hcd *hcd, struct urb *urb, + gfp_t mem_flags); + void (*unmap_urb_for_dma)(struct usb_hcd *hcd, struct urb *urb); + /* hw synch, freeing endpoint resources that urb_dequeue can't */ void (*endpoint_disable)(struct usb_hcd *hcd, struct usb_host_endpoint *ep); @@ -327,6 +332,9 @@ extern void usb_hcd_unlink_urb_from_ep(struct usb_hcd *hcd, struct urb *urb); extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_hcd_unlink_urb(struct urb *urb, int status); +extern int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, + gfp_t mem_flags); +extern void usb_hcd_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb); extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status); extern void usb_hcd_flush_endpoint(struct usb_device *udev, |