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-rw-r--r--include/linux/usb.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 739f1fd..9983302 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -965,10 +965,19 @@ extern int usb_disabled(void);
* needed */
#define URB_FREE_BUFFER 0x0100 /* Free transfer buffer with the URB */
+/* The following flags are used internally by usbcore and HCDs */
#define URB_DIR_IN 0x0200 /* Transfer from device to host */
#define URB_DIR_OUT 0
#define URB_DIR_MASK URB_DIR_IN
+#define URB_DMA_MAP_SINGLE 0x00010000 /* Non-scatter-gather mapping */
+#define URB_DMA_MAP_PAGE 0x00020000 /* HCD-unsupported S-G */
+#define URB_DMA_MAP_SG 0x00040000 /* HCD-supported S-G */
+#define URB_MAP_LOCAL 0x00080000 /* HCD-local-memory mapping */
+#define URB_SETUP_MAP_SINGLE 0x00100000 /* Setup packet DMA mapped */
+#define URB_SETUP_MAP_LOCAL 0x00200000 /* HCD-local setup packet */
+#define URB_DMA_SG_COMBINED 0x00400000 /* S-G entries were combined */
+
struct usb_iso_packet_descriptor {
unsigned int offset;
unsigned int length; /* expected length */
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