Cooperate with sysfs Kernel I2C driver from C application side

Anton_K — Mon, 23 Oct 2023 16:35:38 GMT

Hello, I'm using i.MX8 yocto build and able to select supported MISC I2C drivers as the Kernel driver. Actually I2C driver located on the kernel/drivers/misc/bh1770glc.c and I can see some sysfs attributes to configure and cooperate with physical I2C slave.
My question is how am I able to write my own C application to access the sysfs control attribute from struct attribute_group list? Can someone help my to search some C API or examples of how to control I2C devices as the Kernel driver via sysfs attributes for example?
Thanks in advance, Anton!

Re: Cooperate with sysfs Kernel I2C driver from C application side

Anton_K — Tue, 24 Oct 2023 10:00:15 GMT

Oh, I've found good solution here: https://github.com/mozcelikors/tea5767_kernel_driver

It's the way to access the files on /sys/class/i2c-dev/i2c-3/device/3-0038/bh1770glc/. All files here are the attributes of sysfs group.

topic Re: Cooperate with sysfs Kernel I2C driver from C application side in i.MX Processors

Cooperate with sysfs Kernel I2C driver from C application side

Re: Cooperate with sysfs Kernel I2C driver from C application side