vb2_clear_la...fer_dequeued(9)

💅 vb2_clear_last_buffer_dequeued(9) — the "okay bestie, forget that last buffer" flag-clearing moment

okay so real talk: this is a page out of the Kernel API Manual (that's the manual name, iykyk), and it's genuinely tiny but it does exactly one job and does it with main character energy ✨ the page title got truncated by the man-page generator so it shows up as vb2_clear_la...fer_dequeued(9) — yes that's on purpose, no we're not fixing it 💀

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🌸 NAME 🌸

vb2_clear_last_buffer_dequeued — clears the last-buffer-dequeued flag of a queue. that's it. that's the whole vibe. it doesn't stream, it doesn't allocate, it just resets a flag on your queue. periodt 💅

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🦋 SYNOPSIS 🦋

void vb2_clear_last_buffer_dequeued (struct vb2_queue *q );

note the void up front — nothing comes back to you, bestie, this function gives and gives and expects zero return 🫶

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🎀 ARGUMENTS 🎀

• q — pointer to a struct vb2_queue that holds a videobuf2 queue. that's the one whose flag is getting cleared, so like… make sure it's the right queue before you hand it over 🙈

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👑 SEE ALSO 👑

the whole extended friend group lives in the kernel file ./include/media/videobuf2-core.h, and honestly the crossover list is giving huge cast:

• enum vb2_memory(9)
• struct vb2_mem_ops(9)
• struct vb2_plane(9)
• enum vb2_io_modes(9)
• enum vb2_buffer_state(9)
• struct vb2_buffer(9)
• struct vb2_ops(9)
• struct vb2_buf_ops(9)
• struct vb2_queue(9)
• vb2_queue_allows_cache_hints(9)
• vb2_plane_vaddr(9)
• vb2_plane_cookie(9)
• vb2_buffer_done(9)
• vb2_discard_done(9)
• vb2_wait_for_all_buffers(9)
• vb2_core_querybuf(9)
• vb2_core_reqbufs(9)
• vb2_core_create_bufs(9)
• vb2_core_prepare_buf(9)
• vb2_core_remove_bufs(9)
• vb2_core_qbuf(9)
• vb2_core_dqbuf(9)
• vb2_core_streamon(9)
• vb2_core_streamoff(9)
• vb2_core_expbuf(9)
• vb2_core_queue_init(9)
• vb2_core_queue_release(9)
• vb2_queue_error(9)
• vb2_mmap(9)
• vb2_get_unmapped_area(9)
• vb2_core_poll(9)
• vb2_read(9)
• vb2_write(9)
• vb2_thread_fnc(9)
• vb2_thread_start(9)
• vb2_thread_stop(9)
• vb2_is_streaming(9)
• vb2_fileio_is_active(9)
• vb2_get_num_buffers(9)
• vb2_is_busy(9)
• vb2_get_drv_priv(9)
• vb2_set_plane_payload(9)
• vb2_get_plane_payload(9)
• vb2_plane_size(9)
• vb2_start_streaming_called(9)
• vb2_get_buffer(9)
• vb2_buffer_in_use(9)
• vb2_verify_memory_type(9)
• vb2_request_object_is_buffer(9)
• vb2_request_buffer_cnt(9)

like every single one of them. no cap, that's the whole list, go read them if you're obsessed 🔥

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lowkey reminder: there's no DESCRIPTION section on this page. the NAME line is the description. sometimes a queen says it once and moves on 💜

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and that's the page, bestie 🌈 this cutie came from ./include/media and is dated October 2026 — stan a strictly-clear-the-flag icon, she's literally doing one thing and doing it flawlessly 🍓✨