Commit 468fde0b authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

media: v4l2-dev: document VFL_DIR_* direction defines 



The V4L_DIR_* direction flags document the direction for a
V4L2 device node. Convert them to enum and document.

Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 1ac05163

include/media/v4l2-dev.h

+16 −6
Original line number Diff line number Diff line
@@ -41,11 +41,21 @@ enum vfl_devnode_type { 
};

#define VFL_TYPE_MAX VFL_TYPE_TOUCH



/* Is this a receiver, transmitter or mem-to-mem? */

/* Ignored for VFL_TYPE_SUBDEV. */

#define VFL_DIR_RX		0

#define VFL_DIR_TX		1

#define VFL_DIR_M2M		2

/**

 * enum  vfl_direction - Identifies if a &struct video_device corresponds

 *	to a receiver, a transmitter or a mem-to-mem device.

 *

 * @VFL_DIR_RX:		device is a receiver.

 * @VFL_DIR_TX:		device is a transmitter.

 * @VFL_DIR_M2M:	device is a memory to memory device.

 *

 * Note: Ignored if &enum vfl_devnode_type is %VFL_TYPE_SUBDEV.

 */

enum vfl_devnode_direction {

	VFL_DIR_RX,

	VFL_DIR_TX,

	VFL_DIR_M2M,

};



struct v4l2_ioctl_callbacks;

struct video_device;
@@ -250,7 +260,7 @@ struct video_device 
	/* device info */

	char name[32];

	enum vfl_devnode_type vfl_type;

	int vfl_dir;

	enum vfl_devnode_direction vfl_dir;

	int minor;

	u16 num;

	unsigned long flags;