Linux读写芯片i2c寄存器的相关内容

文章 2017-11-28 来自：开发者社区

Linux下读写芯片的I2C寄存器

首先，我们要了解Linux系统提供的I2C操作函数怎么使用，上篇文章已经提到过，对I2C设备的读写，Linux系统提供了多种接口，这些接口可以在内核的 i2c.h 中找到，这里我主要介绍下面这组读写接口： extern int i2c_master_send(struct i2c_client *,const char* ,int);&n...

文章 2017-02-16 来自：开发者社区

Linux下读写芯片的I2C寄存器

要想在Linux下读写芯片的I2C寄存器，一般需要在Linux编写一份该芯片的I2C驱动，关于Linux下如何编写I2C驱动，前一篇文章《手把手教你写Linux I2C设备驱动》已经做了初步的介绍，并且留下了两个疑问尚未解决，第一个是如何对Linux提供的I2C操作函数进行进一步封装，实现对芯片寄存器的读写；另一个是如何在用户空间调用该I2C驱动代码。本文将讨论前一个问题。 ...

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更新时间 2022-08-03 12:48:40

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