HAL for espressif

[Zaltora]

the esp-open-rtos project has a lot of component libraries that could be used in several SDKs as well as esp32.
Would it be a good idea to create a standard I2C / SPI / PWM / GPIO / I2S / ... interface ?
a component that would be called by each library. A large part of extras folder will be portable. (I think especially to sensors libraries).
Would the idea of creating a separate repository for these modules be a good idea too?
I see that already libraries are thought to be portable on esp32. Myself, I carry some libraries from here.

[vortex314]

My 2 cents : Nice idea, the way I approached it was by creating in C++ some abstract base classes that on each platform differ in implementation. https://github.com/vortex314/Vertx-ESP8266/blob/master/Hardware.h
On an hardware level I standardized on UEXT connectors , so the sensors/ drivers are interchangeable between ESP8266 and ESP32 ( theoretically ) Still work in evolution.
On an ESP32 I have 3 x UEXT connectors and on an ESP8266 1x UEXT.
The UEXT 1-> 3 is reflected by the Connector class which can provide Uart,SPI,.. classes as a factory.

So that a device just indicates on which connector it sits and should work : https://github.com/vortex314/esp-ebos/blob/master/main/HCSR04.h