API' Calling issue

[99003662]

Hi ,
i am new to zephyr rtos and am struct in a position where I can't figure out how api's will be called..
For ex- am referring flash.h driver file , it has functions like flash_read, flash_write etc fine. now am using one of api , i.e. flash_write () in my code fine. so that function internally calling one more function named write() ,with same arguments. now my query is what is that write() api is doing exactly , where is that api definition , what are the steps to be taken care inside that api , where to find that api definition .

[de-nordic]

The first parameter of each flash API call is a device pointer, this pointer is used to identify a flash device that will be used. The write callback you mention comes from flash API interface: https://github.com/zephyrproject-rtos/zephyr/blob/main/include/drivers/flash.h#L130-L143.
Each flash device driver defines the API separately, for example look at this definition https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/flash/soc_flash_nrf.c#L264-L272.