Optimise usage of videodev2.h header

opts/log.h

@@ -1,11 +1,25 @@
 #pragma once
 
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+#include <math.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <errno.h>
+#include <assert.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <pthread.h>
 #include <stdio.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <time.h>
 #include <sys/time.h>
 #include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
 
 #define __FILENAME__ __FILE__
 
@@ -35,3 +49,17 @@ bool filter_log(const char *filename);
 uint64_t get_monotonic_time_us(struct timespec *ts, struct timeval *tv);
 uint64_t get_time_us(clockid_t clock, struct timespec *ts, struct timeval *tv, int64_t delays_us);
 int shrink_to_block(int size, int block);
+
+#ifndef CFG_XIOCTL_RETRIES
+#	define CFG_XIOCTL_RETRIES 4
+#endif
+#define XIOCTL_RETRIES ((unsigned)(CFG_XIOCTL_RETRIES))
+
+int xioctl(const char *name, int fd, int request, void *arg);
+
+#define E_XIOCTL(dev, _fd, _request, _value, _msg, ...) do { \
+		int ret; \
+		if ((ret = xioctl(dev_name(dev), _fd, _request, _value)) < 0) { \
+			E_LOG_ERROR(dev, "xioctl(ret=%d): " _msg, ret, ##__VA_ARGS__); \
+		} \
+	} while(0)