src

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_device.h - Common base for V4L2 video devices and subdevices
 */
#ifndef __LIBCAMERA_V4L2_DEVICE_H__
#define __LIBCAMERA_V4L2_DEVICE_H__

#include <map>
#include <string>

#include <linux/videodev2.h>

#include "log.h"

namespace libcamera {

class V4L2ControlInfo;
class V4L2ControlList;

class V4L2Device : protected Loggable
{
public:
	void close();
	bool isOpen() const { return fd_ != -1; }

	const V4L2ControlInfo *getControlInfo(unsigned int id) const;
	int getControls(V4L2ControlList *ctrls);
	int setControls(V4L2ControlList *ctrls);

	const std::string &deviceNode() const { return deviceNode_; }

protected:
	V4L2Device(const std::string &deviceNode);
	~V4L2Device();

	int open(unsigned int flags);

	int ioctl(unsigned long request, void *argp);

	int fd() { return fd_; }

private:
	void listControls();
	void updateControls(V4L2ControlList *ctrls,
			    const V4L2ControlInfo **controlInfo,
			    const struct v4l2_ext_control *v4l2Ctrls,
			    unsigned int count);

	std::map<unsigned int, V4L2ControlInfo> controls_;
	std::string deviceNode_;
	int fd_;
};

} /* namespace libcamera */

#endif /* __LIBCAMERA_V4L2_DEVICE_H__ */
Mode	Name	Size
d---------	android	1142	log plain
d---------	apps	140	log plain
d---------	gstreamer	665	log plain
d---------	ipa	291	log plain
d---------	libcamera	2627	log plain
-rw-r--r--	meson.build	1239	log plain
d---------	py	140	log plain
d---------	v4l2	498	log plain