Hi Greg! Yes, if I use #include <nuttx/ioexpander/pcf8575.h> this problem is solved, but then the code loses the reference to that specific struct causing another error.
And how exactly "the file does not exist"? I can open it and it is at the nuttx repo, I shared it's link. ________________________________ From: Gregory Nutt <spudan...@gmail.com> Sent: Wednesday, October 4, 2023 10:52:32 PM To: dev@nuttx.apache.org <dev@nuttx.apache.org> Subject: Re: PCF8575 driver for NuttX >>> Why wouldn't the compiler access nuttx/drivers/ioexpander/pcf8575.h? >>> >> Access to internal driver files by applications is specifically >> forbidden. This is part of the enforcement of the modular design to >> assure that people do not do that kind of thing: Applications must >> not have access to the internal implementation of drivers. >> >> > Never mind, I misread the ultra tiny fonts in the image. > include/nuttx/ holds the public interface to the driver (vs. the > internal private definitions for the driver in drivers/). Anything > under include/ should be include-able by your application. Actually, the problem is very simple. This file does not exist. #include <nuttx/drivers/ioexpander/pcf8575.h> You probably wanted #include <nuttx/ioexpander/pcf8575.h>
