v4l2_m2m_buf_remove(9)

💅 v4l2_m2m_buf_remove — from the Kernel API Manual, bestie

okay so this is v4l2_m2m_buf_remove(9) from the Kernel API Manual, and it's honestly one of the more lowkey-heroic functions in the mem2mem world. no cap. let's get into it 💖

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✨ NAME ✨

v4l2_m2m_buf_remove — take off a buffer from the list of ready buffers and return it

like, it literally pops a buffer off the ready list and hands it back to you. it's giving "here bestie, take this, it's yours now" 🫶

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🌸 SYNOPSIS 🌸

struct vb2_v4l2_buffer * v4l2_m2m_buf_remove (struct v4l2_m2m_queue_ctx
*q_ctx );

one function, one argument, one return value. clean. minimal. iconic. ✨

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🎀 ARGUMENTS 🎀

• q_ctx — pointer to struct v4l2_m2m_queue_ctx. that's the queue context you're pulling the buffer out of, so like… know which queue you're grabbing from, okay? 🙈

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🦋 SEE ALSO 🦋

heads up: this list is LONG, and we are NOT skipping a single one of them. every friend in the mem2mem group chat is getting named. 💀

first up, the file it lives in:

• Kernel file ./include/media/v4l2-mem2mem.h

then the structs:

• struct v4l2_m2m_ops(9)
• struct v4l2_m2m_queue_ctx(9)
• struct v4l2_m2m_ctx(9)
• struct v4l2_m2m_buffer(9)

then the whole squad:

• v4l2_m2m_get_curr_priv(9)
• v4l2_m2m_get_vq(9)
• v4l2_m2m_try_schedule(9)
• v4l2_m2m_job_finish(9)
• v4l2_m2m_buf_done_and_job_finish(9)
• v4l2_m2m_clear_state(9)
• v4l2_m2m_mark_stopped(9)
• v4l2_m2m_dst_buf_is_last(9)
• v4l2_m2m_has_stopped(9)
• v4l2_m2m_is_last_draining_src_buf(9)
• v4l2_m2m_last_buffer_done(9)
• v4l2_m2m_suspend(9)
• v4l2_m2m_resume(9)
• v4l2_m2m_reqbufs(9)
• v4l2_m2m_querybuf(9)
• v4l2_m2m_qbuf(9)
• v4l2_m2m_dqbuf(9)
• v4l2_m2m_prepare_buf(9)
• v4l2_m2m_create_bufs(9)
• v4l2_m2m_expbuf(9)
• v4l2_m2m_streamon(9)
• v4l2_m2m_streamoff(9)
• v4l2_m2m_update_start_streaming_state(9)
• v4l2_m2m_update_stop_streaming_state(9)
• v4l2_m2m_encoder_cmd(9)
• v4l2_m2m_decoder_cmd(9)
• v4l2_m2m_poll(9)
• v4l2_m2m_mmap(9)
• v4l2_m2m_init(9)
• v4l2_m2m_release(9)
• v4l2_m2m_get(9)
• v4l2_m2m_put(9)
• v4l2_m2m_ctx_init(9)
• v4l2_m2m_ctx_release(9)
• v4l2_m2m_buf_queue(9)
• v4l2_m2m_num_src_bufs_ready(9)
• v4l2_m2m_num_dst_bufs_ready(9)
• v4l2_m2m_next_buf(9)
• v4l2_m2m_next_src_buf(9)
• v4l2_m2m_next_dst_buf(9)
• v4l2_m2m_last_buf(9)
• v4l2_m2m_last_src_buf(9)
• v4l2_m2m_last_dst_buf(9)
• v4l2_m2m_for_each_dst_buf(9)
• v4l2_m2m_for_each_src_buf(9)
• v4l2_m2m_for_each_dst_buf_safe(9)
• v4l2_m2m_for_each_src_buf_safe(9)
• v4l2_m2m_get_src_vq(9)
• v4l2_m2m_get_dst_vq(9)
• v4l2_m2m_src_buf_remove(9)
• v4l2_m2m_dst_buf_remove(9)
• v4l2_m2m_buf_remove_by_buf(9)
• v4l2_m2m_src_buf_remove_by_buf(9)
• v4l2_m2m_dst_buf_remove_by_buf(9)
• v4l2_m2m_buf_copy_metadata(9)

see? everyone's here. the whole family. no one left out. 🥹💜

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okay and that's the whole page!! short and sweet, just how we like it. this one shipped out from ./include/media back in October 2026, and the page itself is v4l2_m2m_buf_remove(9) — go forth and remove those buffers, bestie, you're gonna slay 💅✨🎀