Add working USB HID driver, by Tomer Shalev (part of his GSoC work).

This needs support for usb interrupt transfers, so there are some changes in various USB drivers as well (only usb-drv-arc supports it at this point, others won't have working HID yet).

HID is disabled for now, as the apps/ part is not included yet.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20962 a1c6a512-1295-4272-9138-f99709370657

firmware/usbstack/usb_class_driver.h

@@ -85,10 +85,10 @@ struct usb_class_driver {
 #endif
 };
 
-#define PACK_DESCRIPTOR(dest, descriptor) \
+#define PACK_DATA(dest, data) \
     do { \
-        memcpy(dest, &(descriptor), sizeof(descriptor)); \
-        dest += sizeof(descriptor); \
+        memcpy(dest, &(data), sizeof(data)); \
+        dest += sizeof(data); \
     } while (0)
 
 #endif