v4l2_prio_open(9)

💅 v4l2_prio_open(9) — like, the priority open logic, bestie

okay so this is a page from the Kernel API Manual and it's about v4l2_prio_open — the little function that "Implements the priority logic for a file handler open". yes that's the whole NAME line and yes it's lowkey iconic 🎀

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✨ SYNOPSIS ✨

void v4l2_prio_open (struct v4l2_prio_state *global , enum v4l2_priority
*local );

that's it. two args, no return. she's simple, she's elegant, she does one thing 💖

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🫶 ARGUMENTS 🫶

• global — pointer to the struct v4l2_prio_state of the device node. like, the device's whole priority vibe check lives here 👑
• local — pointer to the desired priority, as defined by enum v4l2_priority. this is the energy you're bringing to the open 🌸

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💀 DESCRIPTION 💀

ngl there is literally no prose here, there's just a NOTE, and the NOTE is the moment:

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

fr fr. it's not for you, it's not for your driver, it's V4L2 core's own business. iykyk 🙈 stay in your lane bestie, respectfully 💅

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🔥 SEE ALSO 🔥

okay so this list is long and i'm not skipping a single one of them, because that's not the vibe. kernel file ./include/media/v4l2-dev.h and then, in order, the whole 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_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_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)

thirty-four references, all present, all accounted for, we ate and left no crumbs 🍓✨

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🌸 and that's the page!! she lives in ./include/media, she's dated October 2026, and she's part of the Kernel API Manual — mwah, love u, go read the source bestie 🧚💜