ioctl VIDIOC_SUBDEV_ENUM_MBUS_CODE &manvol; VIDIOC_SUBDEV_ENUM_MBUS_CODE Enumerate media bus formats int ioctl int fd int request struct v4l2_subdev_mbus_code_enum * argp fd &fd; request VIDIOC_SUBDEV_ENUM_MBUS_CODE argp To enumerate media bus formats available at a given sub-device pad applications initialize the pad, which and index fields of &v4l2-subdev-mbus-code-enum; and call the VIDIOC_SUBDEV_ENUM_MBUS_CODE ioctl with a pointer to this structure. Drivers fill the rest of the structure or return an &EINVAL; if either the pad or index are invalid. All media bus formats are enumerable by beginning at index zero and incrementing by one until EINVAL is returned. Available media bus formats may depend on the current 'try' formats at other pads of the sub-device, as well as on the current active links. See &VIDIOC-SUBDEV-G-FMT; for more information about the try formats. &cs-str; __u32 pad Pad number as reported by the media controller API. __u32 index Number of the format in the enumeration, set by the application. __u32 code The media bus format code, as defined in . __u32 which Media bus format codes to be enumerated, from &v4l2-subdev-format-whence;. __u32 reserved[8] Reserved for future extensions. Applications and drivers must set the array to zero. &return-value; EINVAL The &v4l2-subdev-mbus-code-enum; pad references a non-existing pad, or the index field is out of bounds.