esp-idf/components/esp_hw_support
..
include
port
test
CMakeLists.txt
Kconfig
Kconfig.spiram.common
README.md
clk_ctrl_os.c
compare_set.c
component.mk
cpu_util.c
esp_async_memcpy.c
esp_clk.c
hw_random.c
intr_alloc.c
linker.lf
mac_addr.c
regi2c_ctrl.c
sdkconfig.rename
sleep_modes.c

README.md

esp_hw_support

This component contains hardware-related operations for supporting the system. These operations are one level above that of hal in that these(1) use system services such as memory allocation, logging, scheduling or (2) may be multi-step operations involving/affecting multiple parts of the SoC.

Implementations that don't fit other components cleanly, but are not worth creating a new component for (yet) may also be placed here as long as they don't pull dependencies other than the core system components.