diff --git a/src/lib/cdev/posix/cdev_platform.hpp b/src/lib/cdev/posix/cdev_platform.hpp
index ef17b8fef6..c93938d70c 100644
--- a/src/lib/cdev/posix/cdev_platform.hpp
+++ b/src/lib/cdev/posix/cdev_platform.hpp
@@ -17,12 +17,12 @@ using px4_file_operations_t = struct file_operations;
 using mode_t = uint32_t;
 
 struct file_t {
-	int flags;
-	void *priv;
-	void *vdev;
+	int f_oflags{0};
+	void *f_priv{nullptr};
+	void *vdev{nullptr};
 
-	file_t() : flags(0), priv(nullptr), vdev(nullptr) {}
-	file_t(int f, void *c) : flags(f), priv(nullptr), vdev(c) {}
+	file_t() = default;
+	file_t(int f, void *c) : f_oflags(f), vdev(c) {}
 };
 
 } // namespace cdev
diff --git a/src/modules/uORB/uORBDeviceNode.cpp b/src/modules/uORB/uORBDeviceNode.cpp
index 21702bcc2d..f7042b024a 100644
--- a/src/modules/uORB/uORBDeviceNode.cpp
+++ b/src/modules/uORB/uORBDeviceNode.cpp
@@ -33,14 +33,6 @@
 
 #include "uORBDeviceNode.hpp"
 
-#ifdef __PX4_NUTTX
-#define FILE_FLAGS(filp) filp->f_oflags
-#define FILE_PRIV(filp) filp->f_priv
-#else
-#define FILE_FLAGS(filp) filp->flags
-#define FILE_PRIV(filp) filp->priv
-#endif
-
 #include "uORBDeviceNode.hpp"
 #include "uORBUtils.hpp"
 #include "uORBManager.hpp"
@@ -58,7 +50,7 @@ uORB::DeviceNode::SubscriberData *uORB::DeviceNode::filp_to_sd(cdev::file_t *fil
 	}
 
 #endif
-	return (SubscriberData *)(FILE_PRIV(filp));
+	return (SubscriberData *)(filp->f_priv);
 }
 
 uORB::DeviceNode::DeviceNode(const struct orb_metadata *meta, const char *path, int priority, unsigned int queue_size) :
@@ -82,7 +74,7 @@ uORB::DeviceNode::open(cdev::file_t *filp)
 	int ret;
 
 	/* is this a publisher? */
-	if (FILE_FLAGS(filp) == PX4_F_WRONLY) {
+	if (filp->f_oflags == PX4_F_WRONLY) {
 
 		/* become the publisher if we can */
 		lock();
@@ -111,7 +103,7 @@ uORB::DeviceNode::open(cdev::file_t *filp)
 	}
 
 	/* is this a new subscriber? */
-	if (FILE_FLAGS(filp) == PX4_F_RDONLY) {
+	if (filp->f_oflags == PX4_F_RDONLY) {
 
 		/* allocate subscriber data */
 		SubscriberData *sd = new SubscriberData{};
@@ -123,7 +115,7 @@ uORB::DeviceNode::open(cdev::file_t *filp)
 		/* If there were any previous publications, allow the subscriber to read them */
 		sd->generation = _generation - (_queue_size < _generation ? _queue_size : _generation);
 
-		FILE_PRIV(filp) = (void *)sd;
+		filp->f_priv = (void *)sd;
 
 		ret = CDev::open(filp);
 
@@ -137,7 +129,7 @@ uORB::DeviceNode::open(cdev::file_t *filp)
 		return ret;
 	}
 
-	if (FILE_FLAGS(filp) == 0) {
+	if (filp->f_oflags == 0) {
 		return CDev::open(filp);
 	}
 
diff --git a/src/platforms/posix/tests/vcdev_test/vcdevtest_example.cpp b/src/platforms/posix/tests/vcdev_test/vcdevtest_example.cpp
index f9ca571944..05755881cf 100644
--- a/src/platforms/posix/tests/vcdev_test/vcdevtest_example.cpp
+++ b/src/platforms/posix/tests/vcdev_test/vcdevtest_example.cpp
@@ -120,7 +120,7 @@ private:
 int VCDevNode::open(cdev::file_t *handlep)
 {
 	// Only allow one writer
-	if (_is_open_for_write && (handlep->flags & PX4_F_WRONLY)) {
+	if (_is_open_for_write && (handlep->f_oflags & PX4_F_WRONLY)) {
 		errno = EBUSY;
 		return -1;
 	}
@@ -131,9 +131,9 @@ int VCDevNode::open(cdev::file_t *handlep)
 		return ret;
 	}
 
-	handlep->priv = new PrivData;
+	handlep->f_priv = new PrivData;
 
-	if (_is_open_for_write && (handlep->flags & PX4_F_WRONLY)) {
+	if (_is_open_for_write && (handlep->f_oflags & PX4_F_WRONLY)) {
 		_is_open_for_write = true;
 	}
 
@@ -142,12 +142,12 @@ int VCDevNode::open(cdev::file_t *handlep)
 
 int VCDevNode::close(cdev::file_t *handlep)
 {
-	delete (PrivData *)handlep->priv;
-	handlep->priv = nullptr;
+	delete (PrivData *)handlep->f_priv;
+	handlep->f_priv = nullptr;
 	CDev::close(handlep);
 
 	// Enable a new writer of the device is re-opened for write
-	if ((handlep->flags & PX4_F_WRONLY) && _is_open_for_write) {
+	if ((handlep->f_oflags & PX4_F_WRONLY) && _is_open_for_write) {
 		_is_open_for_write = false;
 	}
 
@@ -169,7 +169,7 @@ ssize_t VCDevNode::write(cdev::file_t *handlep, const char *buffer, size_t bufle
 
 ssize_t VCDevNode::read(cdev::file_t *handlep, char *buffer, size_t buflen)
 {
-	PrivData *p = (PrivData *)handlep->priv;
+	PrivData *p = (PrivData *)handlep->f_priv;
 	ssize_t chars_read = 0;
 	PX4_INFO("read %zu write %zu", p->_read_offset, _write_offset);