v4l2_device...subdev_nodes(9)

💅 v4l2_device_register_subdev_nodes — like, the whole glow-up

okay so real talk, this is a page from the Kernel API Manual and it's about v4l2_device_register_subdev_nodes, which — say it with me — registers subdevice device nodes with unrestricted access to the subdevice userspace operations. iconic behavior honestly ✨

🌸 NAME 🌸

v4l2_device_register_subdev_nodes — registers subdevices device nodes with unrestricted access to the subdevice userspace operations 💖

🎀 SYNOPSIS 🎀

int v4l2_device_register_subdev_nodes (struct v4l2_device *v4l2_dev );

🦋 ARGUMENTS 🦋

• v4l2_dev — pointer to struct v4l2_device. yes bestie it's a pointer, it's always a pointer 🙈

💫 DESCRIPTION 💫

so internally? it calls __v4l2_device_register_subdev_nodes. that's it, that's the tea ☕ — it's a little wrapper bestie. if you want the full lore, go read that function's documentation for more details. iykyk 👑

👑 SEE ALSO 👑

like, the whole friend group honestly. go say hi 🫶

• Kernel file ./include/media/v4l2-device.h
• struct v4l2_device(9)
• v4l2_device_get(9)
• v4l2_device_put(9)
• v4l2_device_register(9)
• v4l2_device_set_name(9)
• v4l2_device_disconnect(9)
• v4l2_device_unregister(9)
• v4l2_device_register_subdev(9)
• v4l2_device_unregister_subdev(9)
• __v4l2_device_register_subdev_nodes(9)
• v4l2_device_register_ro_subdev_nodes(9)
• v4l2_subdev_notify(9)
• v4l2_device_supports_requests(9)
• v4l2_device_for_each_subdev(9)
• __v4l2_device_call_subdevs_p(9)
• __v4l2_device_call_subdevs(9)
• __v4l2_device_call_subdevs_until_err_p(9)
• __v4l2_device_call_subdevs_until_err(9)
• v4l2_device_call_all(9)
• v4l2_device_call_until_err(9)
• v4l2_device_mask_call_all(9)
• v4l2_device_mask_call_until_err(9)
• v4l2_device_has_op(9)
• v4l2_device_mask_has_op(9)

and that's the whole vibe check 💅 this one lives in ./include/media, it's dated October 2026, and it goes by v4l2_device...subdev_nodes(9) in case you need to @ it. mwah, go read the kernel bestie 🌈💜