diff --git a/utils/cec-compliance/cec-compliance.cpp b/utils/cec-compliance/cec-compliance.cpp
index ced256f2..8a520786 100644
--- a/utils/cec-compliance/cec-compliance.cpp
+++ b/utils/cec-compliance/cec-compliance.cpp
@@ -4,17 +4,17 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-adapter.cpp b/utils/cec-compliance/cec-test-adapter.cpp
index df7374df..b7a8159d 100644
--- a/utils/cec-compliance/cec-test-adapter.cpp
+++ b/utils/cec-compliance/cec-test-adapter.cpp
@@ -4,16 +4,16 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-audio.cpp b/utils/cec-compliance/cec-test-audio.cpp
index d422a7da..edf528c9 100644
--- a/utils/cec-compliance/cec-test-audio.cpp
+++ b/utils/cec-compliance/cec-test-audio.cpp
@@ -4,15 +4,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-compliance/cec-test-fuzzing.cpp b/utils/cec-compliance/cec-test-fuzzing.cpp
index ce0bf12d..708a8ec3 100644
--- a/utils/cec-compliance/cec-test-fuzzing.cpp
+++ b/utils/cec-compliance/cec-test-fuzzing.cpp
@@ -4,15 +4,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 #include <sstream>
diff --git a/utils/cec-compliance/cec-test-power.cpp b/utils/cec-compliance/cec-test-power.cpp
index 2758c36d..e35264aa 100644
--- a/utils/cec-compliance/cec-test-power.cpp
+++ b/utils/cec-compliance/cec-test-power.cpp
@@ -4,15 +4,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-compliance/cec-test.cpp b/utils/cec-compliance/cec-test.cpp
index 75e56fde..ac99eeba 100644
--- a/utils/cec-compliance/cec-test.cpp
+++ b/utils/cec-compliance/cec-test.cpp
@@ -6,14 +6,14 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 #include <sstream>
diff --git a/utils/cec-ctl/cec-ctl.cpp b/utils/cec-ctl/cec-ctl.cpp
index c7fd7cd8..de7bfc97 100644
--- a/utils/cec-ctl/cec-ctl.cpp
+++ b/utils/cec-ctl/cec-ctl.cpp
@@ -6,8 +6,8 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -15,10 +15,10 @@
 #include <sys/time.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <ctime>
 #include <cerrno>
 #include <string>
diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
index c09d6bbd..3ff4734f 100644
--- a/utils/cec-ctl/cec-pin.cpp
+++ b/utils/cec-ctl/cec-pin.cpp
@@ -4,19 +4,19 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <cerrno>
 #include <string>
 #include <vector>
diff --git a/utils/cec-follower/cec-follower.cpp b/utils/cec-follower/cec-follower.cpp
index 3314a0a1..2819c769 100644
--- a/utils/cec-follower/cec-follower.cpp
+++ b/utils/cec-follower/cec-follower.cpp
@@ -6,15 +6,15 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <sstream>
diff --git a/utils/cec-follower/cec-processing.cpp b/utils/cec-follower/cec-processing.cpp
index bc8c9c09..e2c5c8e2 100644
--- a/utils/cec-follower/cec-processing.cpp
+++ b/utils/cec-follower/cec-processing.cpp
@@ -4,16 +4,16 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <config.h>
 
diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
index 4aecebce..7ac0decb 100644
--- a/utils/cec-follower/cec-tuner.cpp
+++ b/utils/cec-follower/cec-tuner.cpp
@@ -4,7 +4,7 @@
  */
 
 #include <sys/ioctl.h>
-#include <stdlib.h>
+#include <cstdlib>
 
 #include "cec-follower.h"
 #include "compiler.h"
diff --git a/utils/common/media-info.cpp b/utils/common/media-info.cpp
index 89dfe2d7..11141677 100644
--- a/utils/common/media-info.cpp
+++ b/utils/common/media-info.cpp
@@ -4,15 +4,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
diff --git a/utils/common/v4l2-info.cpp b/utils/common/v4l2-info.cpp
index 0aac8504..28116fd3 100644
--- a/utils/common/v4l2-info.cpp
+++ b/utils/common/v4l2-info.cpp
@@ -4,15 +4,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
diff --git a/utils/libcecutil/cec-info.cpp b/utils/libcecutil/cec-info.cpp
index 6741e358..b91de313 100644
--- a/utils/libcecutil/cec-info.cpp
+++ b/utils/libcecutil/cec-info.cpp
@@ -5,7 +5,7 @@
  * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
  */
 
-#include <stdio.h>
+#include <cstdio>
 #include <string>
 #include <unistd.h>
 #include <fcntl.h>
diff --git a/utils/libcecutil/cec-log.cpp b/utils/libcecutil/cec-log.cpp
index 9410c071..84eef739 100644
--- a/utils/libcecutil/cec-log.cpp
+++ b/utils/libcecutil/cec-log.cpp
@@ -4,11 +4,11 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <string>
 #include <linux/cec-funcs.h>
 #include "cec-htng-funcs.h"
diff --git a/utils/libcecutil/cec-parse.cpp b/utils/libcecutil/cec-parse.cpp
index 54c000bb..b7d2d206 100644
--- a/utils/libcecutil/cec-parse.cpp
+++ b/utils/libcecutil/cec-parse.cpp
@@ -4,8 +4,8 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -13,10 +13,10 @@
 #include <sys/time.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <stdarg.h>
+#include <cstdarg>
 #include <cstring>
 #include <ctime>
 #include <cerrno>
diff --git a/utils/rds-ctl/rds-ctl.cpp b/utils/rds-ctl/rds-ctl.cpp
index 00908533..9ff5766f 100644
--- a/utils/rds-ctl/rds-ctl.cpp
+++ b/utils/rds-ctl/rds-ctl.cpp
@@ -8,21 +8,21 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <wchar.h>
-#include <locale.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+#include <cwchar>
+#include <clocale>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <fcntl.h>
-#include <errno.h>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
 #include <config.h>
-#include <signal.h>
+#include <csignal>
 
 #include <linux/videodev2.h>
 #include <libv4l2rds.h>
diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
index 6c92b901..6721dd20 100644
--- a/utils/v4l2-compliance/v4l2-compliance.cpp
+++ b/utils/v4l2-compliance/v4l2-compliance.cpp
@@ -21,22 +21,22 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <sys/utsname.h>
-#include <signal.h>
+#include <csignal>
 #include <vector>
 
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-buffers.cpp b/utils/v4l2-compliance/v4l2-test-buffers.cpp
index fc49fff6..e2df126d 100644
--- a/utils/v4l2-compliance/v4l2-test-buffers.cpp
+++ b/utils/v4l2-compliance/v4l2-test-buffers.cpp
@@ -19,9 +19,9 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -29,8 +29,8 @@
 #include <sys/wait.h>
 #include <sys/epoll.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <poll.h>
 #include <sys/ioctl.h>
 #include <netinet/in.h>
diff --git a/utils/v4l2-compliance/v4l2-test-codecs.cpp b/utils/v4l2-compliance/v4l2-test-codecs.cpp
index 3fd44c8b..377574ec 100644
--- a/utils/v4l2-compliance/v4l2-test-codecs.cpp
+++ b/utils/v4l2-compliance/v4l2-test-codecs.cpp
@@ -19,17 +19,17 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 #include "v4l2-compliance.h"
 
 int testEncoder(struct node *node)
diff --git a/utils/v4l2-compliance/v4l2-test-colors.cpp b/utils/v4l2-compliance/v4l2-test-colors.cpp
index 09d29a3e..6996877d 100644
--- a/utils/v4l2-compliance/v4l2-test-colors.cpp
+++ b/utils/v4l2-compliance/v4l2-test-colors.cpp
@@ -15,19 +15,19 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 
 #include "compiler.h"
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-controls.cpp b/utils/v4l2-compliance/v4l2-test-controls.cpp
index d81dddb2..c3c27119 100644
--- a/utils/v4l2-compliance/v4l2-test-controls.cpp
+++ b/utils/v4l2-compliance/v4l2-test-controls.cpp
@@ -19,15 +19,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <vector>
 
diff --git a/utils/v4l2-compliance/v4l2-test-debug.cpp b/utils/v4l2-compliance/v4l2-test-debug.cpp
index 3f43e661..206b4b82 100644
--- a/utils/v4l2-compliance/v4l2-test-debug.cpp
+++ b/utils/v4l2-compliance/v4l2-test-debug.cpp
@@ -19,19 +19,19 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 #include "v4l2-compliance.h"
 
 int testRegister(struct node *node)
diff --git a/utils/v4l2-compliance/v4l2-test-formats.cpp b/utils/v4l2-compliance/v4l2-test-formats.cpp
index 4ea97ee7..70df465c 100644
--- a/utils/v4l2-compliance/v4l2-test-formats.cpp
+++ b/utils/v4l2-compliance/v4l2-test-formats.cpp
@@ -19,17 +19,17 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 
 #include "compiler.h"
 #include "v4l2-compliance.h"
diff --git a/utils/v4l2-compliance/v4l2-test-input-output.cpp b/utils/v4l2-compliance/v4l2-test-input-output.cpp
index fb8d12b1..e597d126 100644
--- a/utils/v4l2-compliance/v4l2-test-input-output.cpp
+++ b/utils/v4l2-compliance/v4l2-test-input-output.cpp
@@ -19,15 +19,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-compliance/v4l2-test-io-config.cpp b/utils/v4l2-compliance/v4l2-test-io-config.cpp
index 9ade11e8..be885cb3 100644
--- a/utils/v4l2-compliance/v4l2-test-io-config.cpp
+++ b/utils/v4l2-compliance/v4l2-test-io-config.cpp
@@ -19,15 +19,15 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-compliance/v4l2-test-media.cpp b/utils/v4l2-compliance/v4l2-test-media.cpp
index bcd8a725..94c25932 100644
--- a/utils/v4l2-compliance/v4l2-test-media.cpp
+++ b/utils/v4l2-compliance/v4l2-test-media.cpp
@@ -19,19 +19,19 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/sysmacros.h>
 #include <fcntl.h>
 #include <dirent.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 #include <set>
 #include <fstream>
 
diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
index 489639fb..54d3c430 100644
--- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
+++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
@@ -19,17 +19,17 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
-#include <assert.h>
+#include <cassert>
 
 #include "v4l2-compliance.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp b/utils/v4l2-ctl/v4l2-ctl-common.cpp
index 632ada9e..c33f4d46 100644
--- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/sysmacros.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <linux/media.h>
 
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-edid.cpp b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
index 3c09de7a..eb8543f3 100644
--- a/utils/v4l2-ctl/v4l2-ctl-edid.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-edid.cpp
@@ -1,12 +1,12 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-io.cpp b/utils/v4l2-ctl/v4l2-ctl-io.cpp
index 8b6650a4..c4b13d65 100644
--- a/utils/v4l2-ctl/v4l2-ctl-io.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-io.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-meta.cpp b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
index baf405e8..867342b9 100644
--- a/utils/v4l2-ctl/v4l2-ctl-meta.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-misc.cpp b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
index 365a03ef..e35beac8 100644
--- a/utils/v4l2-ctl/v4l2-ctl-misc.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-modes.cpp b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
index b311ce5d..e076be6e 100644
--- a/utils/v4l2-ctl/v4l2-ctl-modes.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
@@ -6,8 +6,8 @@
  * reserved.
  */
 
-#include <stdio.h>
-#include <stdbool.h>
+#include <cstdio>
+
 #include "v4l2-ctl.h"
 
 static bool valid_params(int width, int height, int refresh_rate)
diff --git a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
index 0c67a916..4b9ff077 100644
--- a/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-overlay.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include <linux/fb.h>
 #include <vector>
diff --git a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
index 5101f66c..8d045660 100644
--- a/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-sdr.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-selection.cpp b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
index 017ac0bf..9b53f4c8 100644
--- a/utils/v4l2-ctl/v4l2-ctl-selection.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-selection.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-stds.cpp b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
index f36f8fbd..02f72f25 100644
--- a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 0a2b2205..1ba5adcd 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1,8 +1,8 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
@@ -11,13 +11,13 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/mman.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 #include <linux/media.h>
 
 #include "compiler.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
index d1699635..a89fbaf9 100644
--- a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
index cf2fd8af..96be564e 100644
--- a/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-tuner.cpp
@@ -1,14 +1,14 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
diff --git a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
index e6795ac2..f554aaf1 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vbi.cpp
@@ -1,19 +1,19 @@
 #include <cstring>
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "compiler.h"
 #include "v4l2-ctl.h"
diff --git a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
index a185e33b..3d0d5620 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
index e3cb4bcb..39952eef 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vidout.cpp
@@ -1,18 +1,18 @@
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include "v4l2-ctl.h"
 
diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp
index 844c1af9..9f7e8117 100644
--- a/utils/v4l2-ctl/v4l2-ctl.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl.cpp
@@ -21,22 +21,22 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/epoll.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/sysmacros.h>
 #include <dirent.h>
-#include <math.h>
+#include <cmath>
 
 #include <linux/media.h>
 
diff --git a/utils/v4l2-dbg/v4l2-dbg.cpp b/utils/v4l2-dbg/v4l2-dbg.cpp
index 04ec6475..5fd1a1d5 100644
--- a/utils/v4l2-dbg/v4l2-dbg.cpp
+++ b/utils/v4l2-dbg/v4l2-dbg.cpp
@@ -17,18 +17,18 @@
  */
 
 #include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
+#include <cstdlib>
+#include <cstdio>
 #include <inttypes.h>
 #include <getopt.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
+#include <cctype>
+#include <cerrno>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include <math.h>
+#include <cmath>
 
 #ifdef ANDROID
 #include <android-config.h>
