pjrc/usb_extra.h

   1 #ifndef USB_EXTRA_H
   2 #define  USB_EXTRA_H 1
   3 /*
   4  * Enhanced keyboard features for Windows:
   5  * Audio control and System control
   6  *
   7  * http://www.microsoft.com/whdc/archive/w2kbd.mspx
   8  */
   9
  10 #include <stdint.h>
  11 #include "usb.h"
  12
  13
  14 #define EXTRA_INTERFACE         3
  15 #define EXTRA_ENDPOINT          4
  16 #define EXTRA_SIZE              2
  17 #define EXTRA_BUFFER            EP_DOUBLE_BUFFER
  18
  19
  20 // Consumer Page(0x0C) Consumer Control(0x01)
  21 #define AUDIO_VOL_UP            (1<<0)
  22 #define AUDIO_VOL_DOWN          (1<<1)
  23 #define AUDIO_MUTE              (1<<2)
  24
  25 // Generic Desktop Page(0x01) System Control(0x80)
  26 #define SYSTEM_POWER_DOWN       (1<<0)
  27 #define SYSTEM_SLEEP            (1<<1)
  28 #define SYSTEM_WAKE_UP          (1<<2)
  29
  30
  31 int8_t usb_extra_audio_send(uint8_t bits);
  32 int8_t usb_extra_system_send(uint8_t bits);
  33
  34 #endif