vb2_request_buffer_cnt(9)

💅 vb2_request_buffer_cnt(9)

okay bestie, we're in the Kernel API Manual, and this page is serving one very specific function: vb2_request_buffer_cnt. It tells you the number of buffers in the request. That's the whole plot, and honestly? iconic. ✨

🌸 NAME 🌸

vb2_request_buffer_cnt — return the number of buffers in the request. fr fr, it's a buffer counter for requests. 💖

✨ SYNOPSIS ✨

unsigned int vb2_request_buffer_cnt (struct media_request *req );

🎀 ARGUMENTS 🎀

• req — the request. That's the request, bestie. You hand it over, and the function's unsigned int return value is the number of buffers in it. 🫶

🔗 SEE ALSO 🔗

Kernel file: ./include/media/videobuf2-core.h. The whole reference squad is:

• 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_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)

mwah 💋 byeee — that's the vb2_request_buffer_cnt(9) tea 🍵, source path: ./include/media · date: October 2026 🎀