diff --git a/libraries/USBHID/src/USBKeyboard.h b/libraries/USBHID/src/USBKeyboard.h
index e9b3a401f..ddc2e50ad 100644
--- a/libraries/USBHID/src/USBKeyboard.h
+++ b/libraries/USBHID/src/USBKeyboard.h
@@ -60,18 +60,6 @@ enum FUNCTION_KEY {
KEY_F10, /* F10 key */
KEY_F11, /* F11 key */
KEY_F12, /* F12 key */
- KEY_F13, /* F13 key */
- KEY_F14, /* F14 key */
- KEY_F15, /* F15 key */
- KEY_F16, /* F16 key */
- KEY_F17, /* F17 key */
- KEY_F18, /* F18 key */
- KEY_F19, /* F19 key */
- KEY_F20, /* F20 key */
- KEY_F21, /* F21 key */
- KEY_F22, /* F22 key */
- KEY_F23, /* F23 key */
- KEY_F24, /* F24 key */
KEY_PRINT_SCREEN, /* Print Screen key */
KEY_SCROLL_LOCK, /* Scroll lock */
@@ -188,6 +176,37 @@ class USBKeyboard: public USBHID, public ::mbed::Stream {
*/
virtual int _putc(int c);
+ /**
+ * Clear the persistent list of keys pressed.
+ * Currently has a limit of 10 keys.
+ */
+ void emptyButtonBuffer();
+
+ /**
+ * Add a button to the persistent list of keys pressed.
+ * Currently has a limit of 10 keys.
+ *
+ * @param c character to be added to the list.
+ */
+ void press_button(uint8_t c);
+
+ /**
+ * Send a report with all the pressed keys, then release them.
+ * Currently has a limit of 10 keys.
+ *
+ * @returns true if there is no error, false otherwise
+ */
+ bool sendReleaseAll();
+
+ /**
+ * Send a report with the keys in the array, then release them.
+ * Currently has a limit of 10 keys.
+ *
+ * @param keys_array Array containing the keys you want to send.
+ * @returns true if there is no error, false otherwise
+ */
+ bool sendReleaseKeys(uint8_t* keys_array);
+
/**
* Control media keys
*
@@ -231,6 +250,7 @@ class USBKeyboard: public USBHID, public ::mbed::Stream {
//dummy otherwise it doesn't compile (we must define all methods of an abstract class)
virtual int _getc();
+ uint8_t _keys_pressed[10];
uint8_t _configuration_descriptor[41];
uint8_t _lock_status;
PlatformMutex _mutex;
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