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-rw-r--r--src/include/ipxe/usb.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/include/ipxe/usb.h b/src/include/ipxe/usb.h
index 37b6d94..e7909d3 100644
--- a/src/include/ipxe/usb.h
+++ b/src/include/ipxe/usb.h
@@ -414,7 +414,9 @@ struct usb_endpoint {
/** Recycled I/O buffer list */
struct list_head recycled;
- /** Refill buffer length */
+ /** Refill buffer reserved header length */
+ size_t reserve;
+ /** Refill buffer payload length */
size_t len;
/** Maximum fill level */
unsigned int max;
@@ -588,13 +590,16 @@ extern void usb_complete_err ( struct usb_endpoint *ep,
* Initialise USB endpoint refill
*
* @v ep USB endpoint
- * @v len Refill buffer length (or zero to use endpoint's MTU)
+ * @v reserve Refill buffer reserved header length
+ * @v len Refill buffer payload length (zero for endpoint's MTU)
* @v max Maximum fill level
*/
static inline __attribute__ (( always_inline )) void
-usb_refill_init ( struct usb_endpoint *ep, size_t len, unsigned int max ) {
+usb_refill_init ( struct usb_endpoint *ep, size_t reserve, size_t len,
+ unsigned int max ) {
INIT_LIST_HEAD ( &ep->recycled );
+ ep->reserve = reserve;
ep->len = len;
ep->max = max;
}