diff --git a/fs/rpmsgfs/rpmsgfs_client.c b/fs/rpmsgfs/rpmsgfs_client.c
index 2fda6cfe14..5e2924ead2 100644
--- a/fs/rpmsgfs/rpmsgfs_client.c
+++ b/fs/rpmsgfs/rpmsgfs_client.c
@@ -27,6 +27,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <sys/uio.h>
+#include <termios.h>
 #include <fcntl.h>
 
 #include <nuttx/kmalloc.h>
@@ -396,6 +397,12 @@ static ssize_t rpmsgfs_ioctl_arglen(int cmd)
         return sizeof(int);
       case FIOC_FILEPATH:
         return PATH_MAX;
+      case TCDRN:
+      case TCFLSH:
+        return 0;
+      case TCGETS:
+      case TCSETS:
+        return sizeof(struct termios);
       case FIOC_SETLK:
       case FIOC_GETLK:
       case FIOC_SETLKW: