hyperion.ng/libsrc/hyperion/device/LedDeviceWs2801.cpp

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// STL includes
#include <cstring>
#include <cstdio>
#include <iostream>
// Linux includes
#include <fcntl.h>
#include <sys/ioctl.h>
// hyperion local includes
#include "LedDeviceWs2801.h"
LedDeviceWs2801::LedDeviceWs2801(const std::string& outputDevice, const unsigned baudrate) :
LedSpiDevice(outputDevice, baudrate, 500000),
mLedCount(0)
{
// empty
}
int LedDeviceWs2801::write(const std::vector<ColorRgb> &ledValues)
{
mLedCount = ledValues.size();
const unsigned dataLen = ledValues.size() * sizeof(ColorRgb);
const uint8_t * dataPtr = reinterpret_cast<const uint8_t *>(ledValues.data());
return writeBytes(dataLen, dataPtr);
}
int LedDeviceWs2801::switchOff()
{
return write(std::vector<ColorRgb>(mLedCount, ColorRgb{0,0,0}));
}