我有一个设备会产生一些噪声，我想将其添加到嵌入式Linux系统中/dev/random设备的熵池中。我正在阅读manpageon/dev/random而且我不太了解您传递给RNDADDENTROPYioctl调用的结构。RNDADDENTROPYAddsomeadditionalentropytotheinputpool,incrementingtheentropycount.Thisdiffersfromwritingto/dev/randomor/dev/urandom,whichonlyaddssomedatabutdoesnotincrementtheentropycount.