vpif_buffer_queue_setup(9)

vpif_buffer_queue_setup(9) 💅

okay so bestie, welcome to the Kernel API Manual — today’s main character is vpif_buffer_queue_setup(9), and she is a callback for buffer setup. no cap, we’re gonna get you comfy with every lil detail. ✨

✨ NAME ✨

vpif_buffer_queue_setup — callback function for buffer setup. that’s the whole vibe, and honestly? iconic.

🌸 SYNOPSIS 🌸

the signature is giving:

int vpif_buffer_queue_setup (struct vb2_queue *vq , unsigned int
       *nbuffers , unsigned int *nplanes , unsigned int sizes[] , struct device
       *alloc_devs[] );

🎀 ARGUMENTS 🎀

• vq — a vb2_queue ptr — yes bestie, the queue pointer, periodt.
• nbuffers — a ptr to the number of buffers requested by the application.
• nplanes — contains the number of distinct video planes needed to hold a frame.
• sizes — contains the size (in bytes) of each plane.
• alloc_devs — a ptr to the allocation context.

💅 DESCRIPTION 💅

so when reqbuf is called, this callback function gets called to adjust the buffer count and buffer size. that’s the job, bestie — buffer count and buffer size adjustment, and she ate. 🫶

🦋 SEE ALSO 🦋

catch all the refs:

• kernel file: ./drivers/media/platform/ti/davinci/vpif_display.c
• vpif_buffer_prepare(9)
• vpif_buffer_queue(9)
• vpif_start_streaming(9)
• vpif_stop_streaming(9)
• vpif_querycap(9)
• vpif_output_to_subdev(9)
• vpif_set_output(9)
• vpif_enum_dv_timings(9)
• vpif_s_dv_timings(9)
• vpif_g_dv_timings(9)

xoxo 💋 — from the Kernel API Manual, source ./drivers/media/platform/ti/da..., dated October 2026, page vpif_buffer_queue_setup(9). periodt 🫶