How do I write a new Linux driver for an i2c device?

StackOverflow https://stackoverflow.com/questions/543212

  •  23-08-2019
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Question

I have a usb device with some i2c control functions and I would like to add a userspace API for twiddling those bits. How do I add i2c support to my device's existing driver?

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Solution

The excellent Linux Device Drivers book covers a lot of what it takes to write a Linux device driver, including USB specifics (see chapter 13).

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