Method nbrequestFrom

Sming/Libraries/I2Cdev/I2Cdev.cpp:1434–1453

    }
    
    void TwoWire::nbrequestFrom(uint8_t address, int quantity, void (*function)(int)) {
        // clamp to buffer length
        if (quantity > NBWIRE_BUFFER_LENGTH) {
            quantity = NBWIRE_BUFFER_LENGTH;
        }

        // perform blocking read into buffer
        twi_cbreadFromDone = function;
        twi_readFrom(address, rxBuffer, quantity);
        //uint8_t read = twii_WaitForDone();

        // set rx buffer iterator vars
        //rxBufferIndex = 0;
        //rxBufferLength = read;

        rxBufferIndex = 0;
        rxBufferLength = quantity; // this is a hack

        return; //read;
    }

    uint8_t TwoWire::available(void) {
        return rxBufferLength - rxBufferIndex;