USB: Add endpoint usage definitions to ch9.h

The endpoint usage field is described in the USB 2.0 specification,
chapter 9.6.6.

Also, move the sync type fields block down by some lines to reflect the
fact that these are also stuffed in bmAttributes.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 11 insertions, 6 deletions

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 0fd3fbdd8283..f30253599501 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -377,12 +377,6 @@ struct usb_endpoint_descriptor {
 #define USB_ENDPOINT_NUMBER_MASK        0x0f    /* in bEndpointAddress */
 #define USB_ENDPOINT_DIR_MASK           0x80
 
-#define USB_ENDPOINT_SYNCTYPE           0x0c
-#define USB_ENDPOINT_SYNC_NONE          (0 << 2)
-#define USB_ENDPOINT_SYNC_ASYNC         (1 << 2)
-#define USB_ENDPOINT_SYNC_ADAPTIVE      (2 << 2)
-#define USB_ENDPOINT_SYNC_SYNC          (3 << 2)
-
 #define USB_ENDPOINT_XFERTYPE_MASK      0x03    /* in bmAttributes */
 #define USB_ENDPOINT_XFER_CONTROL       0
 #define USB_ENDPOINT_XFER_ISOC          1
@@ -390,6 +384,17 @@ struct usb_endpoint_descriptor {
 #define USB_ENDPOINT_XFER_INT           3
 #define USB_ENDPOINT_MAX_ADJUSTABLE     0x80
 
+#define USB_ENDPOINT_SYNCTYPE           0x0c
+#define USB_ENDPOINT_SYNC_NONE          (0 << 2)
+#define USB_ENDPOINT_SYNC_ASYNC         (1 << 2)
+#define USB_ENDPOINT_SYNC_ADAPTIVE      (2 << 2)
+#define USB_ENDPOINT_SYNC_SYNC          (3 << 2)
+
+#define USB_ENDPOINT_USAGE_MASK         0x30
+#define USB_ENDPOINT_USAGE_DATA         0x00
+#define USB_ENDPOINT_USAGE_FEEDBACK     0x10
+#define USB_ENDPOINT_USAGE_IMPLICIT_FB  0x20    /* Implicit feedback Data endpoint */
+
 /*-------------------------------------------------------------------------*/
 
 /**