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从零开始写linux字符设备驱动程序(三)(基于友善之臂tiny4412开发板)

这一节，我们再来看看新的知识点，这一次，我们将进一步完善这个字符设备的驱动程序。首先，将上一节的代码做下修改: #include <linux/init.h> #include <linux/module.h> #include <linux/sched.h> ...

从零开始写linux字符设备驱动程序(二)(基于友善之臂tiny4412开发板)

上节，我们讲解了如何写第一个linux字符设备驱动程序，这节，我们将代码做一下修改。如下: #include <linux/init.h> #include <linux/module.h> #include <linux/sched.h> #include &...

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从零开始写linux字符设备驱动程序(一)(基于友善之臂tiny4412开发板)

从这篇博文开始，我将开始手把手教会大家写linux设备驱动程序这是开篇，如何来写第一个字符设备驱动程序。首先，写一个最简单的字符设备驱动程序需要什么？或者说我们需要了解什么？ 1、每一个字符设备至少需要有一个设备号 2、设备号 = 主设备号 + 次设备号 3、同一类设备的主设备号一般是相同的，但...

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更新时间 2024-03-06 12:53:09

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