v4l2_event_dequeue(9)

👑 v4l2_event_dequeue(9)

okay so welcome to the Kernel API Manual, bestie — this is the page for v4l2_event_dequeue(9), and it's short, sweet, and extremely specific. It dequeues events from a video device. That's the vibe. No cap. 💅

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✨ NAME ✨

v4l2_event_dequeue — dequeue events from a video device.

Like, the function name is literally the whole plot: you're pulling events out of a video device's queue. Simple, iconic, ate. 🎀

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💖 SYNOPSIS 💖

here's the signature so you can copy it into your little kernel brain exactly as it is:

int v4l2_event_dequeue (struct v4l2_fh *fh , struct v4l2_event *event ,
int nonblocking );

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🎀 ARGUMENTS 🎀

three args, all main characters:

• fh — pointer to struct v4l2_fh. yes bestie, it's a pointer.
• event — pointer to struct v4l2_event. another pointer, we stay pointing.
• nonblocking — if it's not zero, it waits for an event to arrive. that's the manual's wording, okay? read it twice if you need to. 🔥

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🌈 SEE ALSO 🌈

the cross-references are giving whole-friend-group energy. the kernel file is ./include/media/v4l2-event.h, and the squad is:

• struct v4l2_kevent(9)
• struct v4l2_subscribed_event_ops(9)
• struct v4l2_subscribed_event(9)
• v4l2_event_queue(9)
• v4l2_event_queue_fh(9)
• v4l2_event_wake_all(9)
• v4l2_event_pending(9)
• v4l2_event_subscribe(9)
• v4l2_event_unsubscribe(9)
• v4l2_event_unsubscribe_all(9)
• v4l2_event_subdev_unsubscribe(9)
• v4l2_src_change_event_subscribe(9)
• v4l2_src_change_event_subdev_subscribe(9)

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and that's the page, periodt. 💅 shoutout to the source/version footer situation: ./include/media, October 2026, and yep — v4l2_event_dequeue(9) is the title again. byeee 🫶