video_regis...vice_no_warn(9)

💅 video_register_device_no_warn — the Kernel API Manual, bestie edition

okay so real talk, this page is video_regis...vice_no_warn(9) from the Kernel API Manual, and it's literally the chill, no-drama version of registering your video4linux devices. no warnings, no lectures, just vibes 🎀

✨ NAME ✨

video_register_device_no_warn — register video4linux devices 🦋

✨ SYNOPSIS ✨

int video_register_device_no_warn (struct video_device *vdev , enum
       vfl_devnode_type type , int nr );

🌸 ARGUMENTS 🌸

• vdev — the struct video_device you wanna register, bestie. that's the whole star of the show 💖
• type — what kind of device you're registering, as defined by enum vfl_devnode_type. pick your fighter ✨
• nr — which device node number you're manifesting: 🎀
  • 0 == /dev/video0
  • 1 == /dev/video1
  • ...
  • -1 == first free one, aka "idk you pick, universe" 🙈

🔥 DESCRIPTION 🔥

k so this function is identical to video_register_device, except — and this is the whole personality trait — no warning is issued if the device node number you wanted was already in use. like, it simply does not come for you. iconic, honestly. 🤐✨

internally, it calls __video_register_device. so if you want the actual details, go read that one's docs — it's giving "main character, go look at the source" 💅

NOTE: ⚠️ if video_register_device fails, the release callback of the struct video_device structure is not called. so you, the caller, are responsible for freeing any data. usually that means you should call video_device_release on failure. do not skip this, i'm begging 😭💀

🌈 SEE ALSO 🌈

kernel file ./include/media/v4l2-dev.h plus all these absolute legends:

• enum vfl_devnode_type(9)
• enum vfl_devnode_direction(9)
• enum v4l2_video_device_flags(9)
• struct v4l2_prio_state(9)
• v4l2_prio_init(9)
• v4l2_prio_change(9)
• v4l2_prio_open(9)
• v4l2_prio_close(9)
• v4l2_prio_max(9)
• v4l2_prio_check(9)
• struct v4l2_file_operations(9)
• struct video_device(9)
• media_entity_to_video_device(9)
• to_video_device(9)
• __video_register_device(9)
• video_register_device(9)
• video_unregister_device(9)
• video_device_alloc(9)
• video_device_release(9)
• video_device_release_empty(9)
• v4l2_disable_ioctl(9)
• video_get_drvdata(9)
• video_set_drvdata(9)
• video_devdata(9)
• video_drvdata(9)
• video_device_node_name(9)
• video_is_registered(9)
• v4l2_debugfs_root(9)
• video_device_pipeline_start(9)
• __video_device_pipeline_start(9)
• video_device_pipeline_stop(9)
• __video_device_pipeline_stop(9)
• video_device_pipeline_alloc_start(9)
• video_device_pipeline(9)

and that's the whole page, bestie, you ate 💅✨ this cutie lives over in ./include/media and it's dated October 2026 — go forth and register responsibly, mwah 🫶🎀