v4l2_m2m_get_curr_priv(9)

💖 v4l2_m2m_get_curr_priv — the Kernel API Manual, bestie edition 💖

okay so real talk: this is the v4l2_m2m_get_curr_priv(9) page from the Kernel API Manual, and honestly? it's a tiny little legend. no cap, it does exactly one thing and it does it iconically. let's get into it 🫶

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✨ NAME ✨

v4l2_m2m_get_curr_priv — returns the driver private data for the currently running instance, or NULL if, like, no instance is running 💀

that's it. that's the whole vibe check. it's giving "one job, doing it flawlessly" 👑

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🌸 SYNOPSIS 🌸

void * v4l2_m2m_get_curr_priv (struct v4l2_m2m_dev *m2m_dev );

literally one argument, returns a void *, no drama. we love a low-maintenance function signature 🎀

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🦋 ARGUMENTS 🦋

• m2m_dev — an opaque pointer to the internal data that handles the M2M context 🧚 opaque meaning bestie you do not peek inside, you just pass it along and trust the process, iykyk.

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🔥 SEE ALSO 🔥

so there's a whole friend group here and you should absolutely know them all. the Kernel file is ./include/media/v4l2-mem2mem.h, and the squad is:

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

like I said. big friend group. all of them slay in their own way 💅✨

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heads up bestie: the return value is NULL when there's genuinely no instance running. so like, check it. don't go dereferencing a vibe that isn't there 😭

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and that's the whole page! 💜 this lil cutie lives in ./include/media, dated October 2026, and it's part of the Kernel API Manual — mwah, 10/10, no notes, periodt 🎀🦋🌈