| 17 | unsigned short keyCount = 0; |
| 18 | |
| 19 | bool ReadKey(uint8_t* key){ |
| 20 | if(keyCount <= 0) return false; |
| 21 | |
| 22 | *key = keyQueue[keyQueueStart]; |
| 23 | |
| 24 | keyQueueStart++; |
| 25 | |
| 26 | if(keyQueueStart >= KEY_QUEUE_SIZE) { |
| 27 | keyQueueStart = 0; |
| 28 | } |
| 29 | |
| 30 | keyCount--; |
| 31 | |
| 32 | return true; |
| 33 | } |
| 34 | |
| 35 | class KeyboardDevice : public Device{ |
| 36 | public: |