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- #ifndef USB_EXTRA_H
- #define USB_EXTRA_H 1
- /*
- * Enhanced keyboard features for Windows:
- * Audio control and System control
- *
- * http://www.microsoft.com/whdc/archive/w2kbd.mspx
- */
-
- #include <stdint.h>
- #include "usb.h"
-
-
- #define EXTRA_INTERFACE 3
- #define EXTRA_ENDPOINT 4
- #define EXTRA_SIZE 8
- #define EXTRA_BUFFER EP_DOUBLE_BUFFER
-
-
- int8_t usb_extra_consumer_send(uint16_t bits);
- int8_t usb_extra_system_send(uint16_t bits);
-
- #endif
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