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25 lines
668 B
25 lines
668 B
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#ifndef __AP_HAL_UTILITY_STREAM_H__ |
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#define __AP_HAL_UTILITY_STREAM_H__ |
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#include <AP_HAL/AP_HAL_Namespace.h> |
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#include "Print.h" |
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/* A simple Stream library modeled after the bits we actually use |
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* from Arduino Stream */ |
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class AP_HAL::Stream : public AP_HAL::Print { |
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public: |
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virtual int16_t available() = 0; |
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/* NB txspace was traditionally a member of BetterStream in the |
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* FastSerial library. As far as concerns go, it belongs with available() */ |
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virtual int16_t txspace() = 0; |
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/* return value for read(): |
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* -1 if nothing available, uint8_t value otherwise. */ |
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virtual int16_t read() = 0; |
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}; |
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#endif // __AP_HAL_UTILITY_STREAM_H__ |
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