writeBufferWord method
Write buffer word - mraa_spi_write_buf_word
Write a buffer of words to the SPI device. Returns NULL if an error occurs. Maximum length is 4096
Implementation
Uint16List writeBufferWord(MraaSpiContext dev, Uint16List data, int length) {
final ptr = ffi.calloc.allocate<Uint16>(length);
final ptrData = ptr.asTypedList(length);
ptrData.setAll(0, data);
final retData = _impl.mraa_spi_write_buf_word(dev, ptr, length);
if (retData == nullptr) {
return Uint16List(0);
}
final retDataList = retData.asTypedList(length);
final ret = Uint16List(length);
ret.setAll(0, retDataList);
ffi.calloc.free(retData);
return ret;
}