Default driver

inc/board.h

@@ -0,0 +1,12 @@
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include "driver.h"
+#include "test_drv.h"
+
+static const struct driver tst_drv = {
+    .fp = &tst_fp,
+    .dev = NULL
+};
+
+#endif

inc/driver.h

@@ -0,0 +1,28 @@
+#ifndef __DRIVER_H__
+#define __DRIVER_H__
+
+struct driver;
+
+typedef int (*fp_open_t)(const struct driver *);
+typedef int (*fp_close_t)(const struct driver *);
+typedef int (*fp_read_t)(const struct driver *, char *, unsigned int);
+typedef int (*fp_write_t)(const struct driver *, const char *, unsigned int);
+
+struct driver_fp {
+    fp_open_t   open;
+    fp_close_t  close;
+    fp_read_t   read;
+    fp_write_t  write;
+};
+
+struct driver {
+    const struct driver_fp *fp;
+    const void *dev;
+};
+
+int drv_open(const struct driver *drv);
+int drv_close(const struct driver *drv);
+int drv_read(const struct driver *drv, char *buffer, unsigned int length);
+int drv_write(const struct driver *drv, const char *buffer, unsigned int length);
+
+#endif

inc/test_drv.h

@@ -0,0 +1,20 @@
+#ifndef __TEST_DRV_H__
+#define __TEST_DRV_H__
+
+#include <stdlib.h>
+
+#include "driver.h"
+
+int tst_open(const struct driver *drv);
+int tst_close(const struct driver *drv);
+int tst_read(const struct driver *drv, char *buffer, unsigned int length);
+int tst_write(const struct driver *drv, const char *buffer, unsigned int length);
+
+static const struct driver_fp tst_fp = {
+    .open = tst_open,
+    .close = tst_close,
+    .read = tst_read,
+    .write = tst_write
+};
+
+#endif