setup driver

CMakeLists.txt

@@ -2,3 +2,5 @@ idf_component_register(
     SRCS "blk_box.cpp"
     INCLUDE_DIRS "include"
 )
+
+add_subdirectory(drivers)

blk_box.cpp

@@ -1,6 +1,5 @@
-#include <stdio.h>
 #include "blk_box.h"
 
-const char* get_hello_world() {
-    return "hello, world!";
+void init_blk_box(BlkBoxInitConfig cfg) {
+    
 }

drivers/CMakeLists.txt

@@ -0,0 +1,5 @@
+set(SOURCES 
+    "i2c.cpp"
+)
+
+target_sources(${COMPONENT_LIB} PRIVATE ${SOURCES})

drivers/i2c.cpp

@@ -0,0 +1,5 @@
+#include "stdio.h"
+
+void i2c_test() {
+    printf("initializing i2c or something\n");
+}

include/blk_box.h

@@ -1 +1,7 @@
-const char* get_hello_world();
+struct BlkBoxInitConfig {
+    // nothing for now...
+};
+
+
+
+void init_blk_box(BlkBoxInitConfig cfg);

include/blk_box_drivers/i2c.h

@@ -0,0 +1 @@
+void i2c_test();