linux/drivers/media/v4l2-core/v4l2-ctrls-defs.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * V4L2 controls framework control definitions.
 *
 * Copyright (C) 2010-2021  Hans Verkuil <[email protected]>
 */

#include <linux/export.h>
#include <media/v4l2-ctrls.h>

/*
 * Returns NULL or a character pointer array containing the menu for
 * the given control ID. The pointer array ends with a NULL pointer.
 * An empty string signifies a menu entry that is invalid. This allows
 * drivers to disable certain options if it is not supported.
 */
const char * const *v4l2_ctrl_get_menu(u32 id)
{ … }
EXPORT_SYMBOL(…);

#define __v4l2_qmenu_int_len(arr, len) …
/*
 * Returns NULL or an s64 type array containing the menu for given
 * control ID. The total number of the menu items is returned in @len.
 */
const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
{ … }
EXPORT_SYMBOL(…);

/* Return the control name. */
const char *v4l2_ctrl_get_name(u32 id)
{ … }
EXPORT_SYMBOL(…);

void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
		    s64 *min, s64 *max, u64 *step, s64 *def, u32 *flags)
{ … }
EXPORT_SYMBOL(…);