v4l2_prio_close(9)

💅 v4l2_prio_close(9) — Kernel API Manual, but make it make sense ✨

okay so bestie, welcome to the v4l2_prio_close page from the Kernel API Manual. yes it's a whole kernel function. yes we're gonna get through it together. grab a strawberry 🍓

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🌸 NAME 🌸

v4l2_prio_close — literally implements the priority logic for a file handler close. that's the whole vibe. it handles the priority bookkeeping when a file handler gets closed. slay.

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🎀 SYNOPSIS 🎀

void v4l2_prio_close (struct v4l2_prio_state *global , enum
v4l2_priority local );

it returns void, so like… no return value to obsess over. it just does the thing. 💅

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🦋 ARGUMENTS 🦋

• global — pointer to the struct v4l2_prio_state of the device node. think of it as the device node's priority state, and you're holding its hand 🫶
• local — the priority to be released, as defined by enum v4l2_priority. this is the one that's getting let go.

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🔥 DESCRIPTION 🔥

so the description here is short and honestly a little mysterious, but here's what the page gives us:

NOTE: This function should be used only by the V4L2 core.

that's it. that's the whole description. no cap. the manpage is giving minimalist main character energy 😭

and because that note is a NOTE, let's be dramatic about it: only the V4L2 core should be calling this. it's not for you, it's not for your driver, it's not for your little side project. only the V4L2 core. periodt. 👑

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⭐ SEE ALSO ⭐

the cross-reference section ATE, there are so many. the kernel file is ./include/media/v4l2-dev.h and then we've got this entire squad:

• 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_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_register_device_no_warn(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)

like… that's a roster. the whole friend group. iykyk 💜

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aaaand that's the page!! mwah 💖 this one came from ./include/media and it's dated October 2026 — so yeah, mark your calendar bestie, keep an eye on that source dir, and remember: only the V4L2 core gets to call this one. no exceptions. byeee 🧚‍♀️🌈