ENUM VB2_IO_MODES(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual page for enum vb2_io_modes(9) ✨ the title is right there, and this whole page is literally about queue access methods — that’s the vibe 💅.

✨ SYNOPSIS ✨

here’s the exact enum shape, no cap — keep the spacing and that blank line exactly as they are 🎀:

enum vb2_io_modes {
    VB2_MMAP ,
    VB2_USERPTR ,
    VB2_READ ,
    VB2_WRITE ,
    VB2_DMABUF

};

🌸 Constants 🌸

these are the constants, aka the access-method girlies 👑:

• VB2_MMAP — driver supports MMAP with streaming API 🦋
• VB2_USERPTR — driver supports USERPTR with streaming API 💖
• VB2_READ — driver supports read style access 📖
• VB2_WRITE — driver supports write style access ✍️
• VB2_DMABUF — driver supports DMABUF with streaming API 🌈

🌈 SEE ALSO 🌈

go sip these related pages in this exact order, bestie — it’s a whole friend group 🫶:

• Kernel file ./include/media/videobuf2-core.h
• enum vb2_memory(9)
• struct vb2_mem_ops(9)
• struct vb2_plane(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_clear_last_buffer_dequeued(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)

and that’s the page, bestie 🫶 this little enum vb2_io_modes(9) moment comes from ./include/media and is dated October 2026 — go live your queue-access dreams fr fr 💖✨