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linux 的spi问题:/dev下没有自动生成spidev节点

内核里把spidev都选上了。。。可是系统启动后/dev下没有spidev节点。。要自己手动创建?

用的SDK是6.0的。默认的标准配置。。。自己把user mode spi device driver support选上了。。。

牛人快来