v4l2_m2m_job_finish(9)

💅 v4l2_m2m_job_finish(9) ✨

okay bestie so this one is straight out of the Kernel API Manual, section 9, and it's literally the "you can have the device back now" function 🫶

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🌸 NAME 🌸

v4l2_m2m_job_finish — the way you tell the framework that a job is done and let it do the cleanup for you 🧹✨

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🦋 SYNOPSIS 🦋

void v4l2_m2m_job_finish (struct v4l2_m2m_dev *m2m_dev , struct
v4l2_m2m_ctx *m2m_ctx );

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🎀 ARGUMENTS 🎀

• m2m_dev — the opaque pointer to the internal data that handles the M2M context, iykyk 🙈
• m2m_ctx — the m2m context that's assigned to the instance, handed to you by struct v4l2_m2m_ctx 👑

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💖 DESCRIPTION 💖

So a driver calls this to yield back the device once it's done with it. That's the whole vibe. 🤝

It should be called as soon as possible after you hit a state that lets other instances take control of the device — like, don't be holding the aux cord hostage, periodt 💀

🚨 fr fr important: this function has to be called only after v4l2_m2m_ops->device_run callback has been called on the driver. Not before. Not "close enough." Only after. No cap. 🙏

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🔥 SEE ALSO 🔥

Kernel file ./include/media/v4l2-mem2mem.h plus the whole extended friend group 👑

• struct v4l2_m2m_ops(9)
• struct v4l2_m2m_queue_ctx(9)
• struct v4l2_m2m_ctx(9)
• struct v4l2_m2m_buffer(9)
• v4l2_m2m_get_curr_priv(9)
• v4l2_m2m_get_vq(9)
• v4l2_m2m_try_schedule(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_buf_remove(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)

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and that's the whole page bestie you ate that 💅

this lil icon lives in ./include/media, dropped October 2026, and it's serving v4l2_m2m_job_finish(9) energy from the Kernel API Manual — mwah, go finish your job and release the device 🎀✨🦋