ESP32 Forum

Noticed that even though i am using the same IDF version 4.1.2/

The driver include file and .c file on github vs vscode is not the same.

On VSCODE IDF extension i cannot find some of the function declarations and definitions that i see on github.

Whats the reason for this ?

I am interested in :

esp_err_t i2c_master_write_to_device part of driver/i2c.h
esp_err_t i2c_master_write_read_device



These are not available on VSCODE IDF

I also find the i2c_master_write_read_device function seem missing in the library. I have manual inlude the C:/.espressif/esp-mdf/esp-idf/components/driver/include/ but seem no use.

Those functions were only added recently in master branch

I have copy all the content in the driver in \.espressif\esp-mdf\esp-idf\components\driver to project folder and somehow it work. Is it normal?

XiotSamuel wrote: ↑

Thu Sep 02, 2021 10:02 am

I have copy all the content in the driver in \.espressif\esp-mdf\esp-idf\components\driver to project folder and somehow it work. Is it normal?

If you copy an IDF component into your project, the compiler will (by default) pick that one, which allows you to override IDF components. For the reference, this principle is described in the build system manual.