19 lines
455 B
C++
19 lines
455 B
C++
#ifndef ROWSCANNERINTERFACE_H
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#define ROWSCANNERINTERFACE_H
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/* RowScannerInterface is an interface class.
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Sets rowEnd and returns rowState.
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rowEnd is bitwise, where 1 bit corrsiponds to place immediatly after last key of row.
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rowEnd and rowMask are larger type than portMask so that they can not overflow.
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*/
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#include <Arduino.h>
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#include <inttypes.h>
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class RowScannerInterface
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{
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public:
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virtual uint8_t scan(uint16_t& rowEnd)=0;
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};
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#endif
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