diff --git a/os/sb/common/dirent.h b/os/sb/common/dirent.h
index 9c936d4a9..44e00f97c 100644
--- a/os/sb/common/dirent.h
+++ b/os/sb/common/dirent.h
@@ -42,6 +42,16 @@
 #define _DIRENT_HAVE_D_TYPE
 /** @} */
 
+/**
+ * @name    File types
+ * @{
+ */
+#define DT_REG              IFTODT(S_IFREG)
+#define DT_DIR              IFTODT(S_IFDIR)
+#define DT_CHR              IFTODT(S_IFCHR)
+#define DT_FIFO             IFTODT(S_IFIFO)
+/** @} */
+
 /*===========================================================================*/
 /* Module pre-compile time settings.                                         */
 /*===========================================================================*/
diff --git a/os/sb/user/sbuser.h b/os/sb/user/sbuser.h
index 56fe206e6..056dd5092 100644
--- a/os/sb/user/sbuser.h
+++ b/os/sb/user/sbuser.h
@@ -34,6 +34,7 @@
 #include <sys/stat.h>
 
 #include "errcodes.h"
+#include "dirent.h"
 #include "sbsysc.h"
 
 /*===========================================================================*/
@@ -287,6 +288,19 @@ static inline off_t sbSeek(int fd, off_t offset, int whence) {
   return (off_t)r0;
 }
 
+/**
+ * @brief   Posix-style directory read.
+ * @param[in] fd        file descriptor
+ * @param[in] buf       buffer pointer
+ * @param[in] count     number of bytes
+ * @return              The number of bytes really transferred or an error.
+ */
+static inline ssize_t sbPosixGetdents(int fd, void *buf, size_t count) {
+
+  __syscall4r(0, SB_POSIX_GETDENTS, fd, buf, count);
+  return (ssize_t)r0;
+}
+
 /**
  * @brief   Terminates the sandbox.
  *