keybrd library is an open source library for creating custom-keyboard firmware.
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RowScannerInterface.h 478B

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  1. #ifndef ROWSCANNERINTERFACE_H
  2. #define ROWSCANNERINTERFACE_H
  3. /* RowScannerInterface is an interface class.
  4. Sets rowEnd and returns rowState.
  5. rowEnd is bitwise, where 1 bit corrsiponds to place immediatly after last key of row.
  6. rowEnd and rowMask are larger type than portMask so that they can not overflow.
  7. */
  8. #include <Arduino.h>
  9. #include <inttypes.h>
  10. class RowScannerInterface
  11. {
  12. public:
  13. virtual uint8_t scan(uint16_t& rowEnd, const bool activeHigh)=0;
  14. };
  15. #endif