The hal_sdhost_init_host() function is missing

Technical Discussion
1

Hello! Im trying to create file on SD card with hal_sdhost.h, but functions hal_sdhost_init_host(), hal_rtl_sdhost_init_card() and other from hal_sdhost.h not described (there is no .c file describing these functions ) in standart SDK.

2

You can refer to GitHub - ambiot/ambpro2_sdk: Public SDK for AmebaPro2
And ask for related example and docs