ENUM V4L2_SUBDEV_IO_PIN_BITS(9)

okay so this is enum v4l2_subdev_io_pin_bits(9), straight from the Kernel API Manual, and it’s literally the tiny but iconic enum for Subdevice external IO pin configuration bits. highkey a whole vibe. 💅✨

💖 NAME

enum v4l2_subdev_io_pin_bits — Subdevice external IO pin configuration bits. That’s the name, bestie, and it ate. 🫶

✨ SYNOPSIS

here’s the enum in all its exact, character-for-character glory:

enum v4l2_subdev_io_pin_bits {
    V4L2_SUBDEV_IO_PIN_DISABLE ,
    V4L2_SUBDEV_IO_PIN_OUTPUT ,
    V4L2_SUBDEV_IO_PIN_INPUT ,
    V4L2_SUBDEV_IO_PIN_SET_VALUE ,
    V4L2_SUBDEV_IO_PIN_ACTIVE_LOW

};

🎀 Constants

vibe check on each constant — no cap, all the details stay:

• V4L2_SUBDEV_IO_PIN_DISABLE — disables a pin config. ENABLE assumed. 🫶
• V4L2_SUBDEV_IO_PIN_OUTPUT — set it if pin is an output. 💅
• V4L2_SUBDEV_IO_PIN_INPUT — set it if pin is an input. 🌸
• V4L2_SUBDEV_IO_PIN_SET_VALUE — to set the output value via struct v4l2_subdev_io_pin_config->value. 🔥
• V4L2_SUBDEV_IO_PIN_ACTIVE_LOW — pin active is bit 0. Otherwise, ACTIVE HIGH is assumed. ⭐

🌈 SEE ALSO

the kernel file is ./include/media/v4l2-subdev.h, and then the whole SEE ALSO squad rolls in — all of these are exactly as listed, periodt:

• struct v4l2_decode_vbi_line(9), struct v4l2_subdev_io_pin_config(9), struct v4l2_subdev_core_ops(9), struct v4l2_subdev_tuner_ops(9)
• struct v4l2_subdev_audio_ops(9), struct v4l2_mbus_frame_desc_entry_csi2(9), enum v4l2_mbus_frame_desc_flags(9), struct v4l2_mbus_frame_desc_entry(9)
• enum v4l2_mbus_frame_desc_type(9), struct v4l2_mbus_frame_desc(9), enum v4l2_subdev_pre_streamon_flags(9), struct v4l2_subdev_video_ops(9)
• struct v4l2_subdev_vbi_ops(9), struct v4l2_subdev_sensor_ops(9), enum v4l2_subdev_ir_mode(9), struct v4l2_subdev_ir_parameters(9)
• struct v4l2_subdev_ir_ops(9), struct v4l2_subdev_pad_config(9), struct v4l2_subdev_stream_configs(9), struct v4l2_subdev_krouting(9)
• struct v4l2_subdev_state(9), struct v4l2_subdev_pad_ops(9), struct v4l2_subdev_ops(9), struct v4l2_subdev_internal_ops(9)
• struct v4l2_subdev_platform_data(9), struct v4l2_subdev(9), media_entity_to_v4l2_subdev(9), vdev_to_v4l2_subdev(9)
• struct v4l2_subdev_fh(9), to_v4l2_subdev_fh(9), v4l2_set_subdevdata(9), v4l2_get_subdevdata(9)
• v4l2_set_subdev_hostdata(9), v4l2_get_subdev_hostdata(9), v4l2_subdev_get_fwnode_pad_1_to_1(9), v4l2_subdev_link_validate_default(9)
• v4l2_subdev_link_validate(9), v4l2_subdev_has_pad_interdep(9), __v4l2_subdev_state_alloc(9), __v4l2_subdev_state_free(9)
• v4l2_subdev_init_finalize(9), v4l2_subdev_cleanup(9), v4l2_subdev_state_get_format(9), v4l2_subdev_state_get_crop(9)
• v4l2_subdev_state_get_compose(9), v4l2_subdev_state_get_interval(9), v4l2_subdev_get_fmt(9), v4l2_subdev_get_frame_interval(9)
• v4l2_subdev_set_routing(9), for_each_active_route(9), v4l2_subdev_set_routing_with_fmt(9), v4l2_subdev_routing_find_opposite_end(9)
• v4l2_subdev_state_get_opposite_stream_format(9), v4l2_subdev_state_xlate_streams(9), enum v4l2_subdev_routing_restriction(9), v4l2_subdev_routing_validate(9)
• v4l2_subdev_enable_streams(9), v4l2_subdev_disable_streams(9), v4l2_subdev_s_stream_helper(9), __v4l2_subdev_get_frame_desc_passthrough(9)
• v4l2_subdev_get_frame_desc_passthrough(9), v4l2_subdev_lock_state(9), v4l2_subdev_unlock_state(9), v4l2_subdev_lock_states(9)
• v4l2_subdev_unlock_states(9), v4l2_subdev_get_unlocked_active_state(9), v4l2_subdev_get_locked_active_state(9), v4l2_subdev_lock_and_get_active_state(9)
• v4l2_subdev_init(9), v4l2_subdev_call(9), v4l2_subdev_call_state_active(9), v4l2_subdev_call_state_try(9)
• v4l2_subdev_has_op(9), v4l2_subdev_notify_event(9), v4l2_subdev_is_streaming(9)

mwah 💋 — this little love letter comes from source/version ./include/media, dated October 2026, and it’s the enum v4l2_su..._io_pin_bits(9) manual. periodt. 👑