Validate headers

Makefile

@@ -29,6 +29,9 @@ install: $(TARGET)
 clean:
 	rm -f .depend $(OBJS) $(OBJS:.o=.d) $(HTML_SRC) $(TARGET)
 
+headers:
+	find -name '*.h' | xargs -n1 gcc $(CFLAGS) -Wno-error -c -o /dev/null
+
 -include $(OBJS:.o=.d)
 
 %.o: %.c

device/hw/buffer_list.h

@@ -1,10 +1,15 @@
 #pragma once
 
-#include "v4l2.h"
+#include <stdbool.h>
+#include <stdint.h>
+#include <linux/videodev2.h>
+
+typedef struct buffer_s buffer_t;
+typedef struct device_s device_t;
 
 typedef struct buffer_list_s {
   char *name;
-  struct device_s *device;
+  device_t *device;
   buffer_t **bufs;
   int nbufs;
   int type;

device/hw/links.c

@@ -1,7 +1,7 @@
+#include "device/hw/links.h"
 #include "device/hw/device.h"
 #include "device/hw/buffer.h"
 #include "device/hw/buffer_list.h"
-#include "device/hw/links.h"
 
 #define N_FDS 50
 #define QUEUE_ON_CAPTURE // seems to provide better latency

device/hw/links.h

@@ -1,6 +1,7 @@
 #pragma once
 
-#include "v4l2.h"
+#include <stdint.h>
+#include <stdbool.h>
 
 #define LINKS_LOOP_INTERVAL 100