STRUCT CAMIF_VP(9)

💖 struct camif_vp(9) — CAMIF data processing path structure (codec/preview) 💖

🌸 NAME 🌸

okay bestie, welcome to the Kernel API Manual page for struct camif_vp(9)! This is the CAMIF data processing path structure for codec/preview. It's the struct holding the whole video-path setup, and we are going through every single member like the responsible Unix bestie we are. No skips. No cap. 💅

📦 SYNOPSIS 📦

Here's the struct exactly as it appears, bestie — every field is iconic and must stay put:

struct camif_vp {
    wait_queue_head_t irq_queue;
    int irq;
    struct camif_dev        *camif;
    struct media_pad        pad;
    struct video_device     vdev;
    struct v4l2_ctrl_handler ctrl_handler;
    struct v4l2_fh          *owner;
    struct vb2_queue        vb_queue;
    struct list_head        pending_buf_q;
    struct list_head        active_buf_q;
    unsigned int            active_buffers;
    unsigned int            buf_index;
    unsigned int            frame_sequence;
    unsigned int            reqbufs_count;
    struct camif_scaler     scaler;
    const struct camif_fmt  *out_fmt;
    unsigned int            payload;
    struct camif_frame      out_frame;
    unsigned int            state;
    u16 fmt_flags;
    u8 id;
    u16 rotation;
    u8 hflip;
    u8 vflip;
    unsigned int            offset;
 };

🧩 Members 🧩

Every member, one by one, with zero missing, periodt:

• irq_queue — interrupt handling waitqueue; the waitqueue for interrupt handling. 💤
• irq — the interrupt number for this data path. Yes, the actual irq for this path. 🔢
• camif — pointer to the camif structure. It's giving backstage pass to the CAMIF struct. 🎟️
• pad — media pad for the video node. 🌈
• vdev — video device. 🎥
• ctrl_handler — video node controls handler. 🎛️
• owner — file handle that own the streaming — streaming ownership, iykyk. 🙈
• vb_queue — vb2 buffer queue. 📚
• pending_buf_q — pending (empty) buffers queue head. 🕐
• active_buf_q — active (being written) buffers queue head. 🔥
• active_buffers — counter of buffer set up at the DMA engine. 📈
• buf_index — identifier of a last empty buffer set up in H/W. 🔖
• frame_sequence — image frame sequence counter. 🎞️
• reqbufs_count — the number of buffers requested. 🧾
• scaler — the scaler structure. 🪄
• out_fmt — pixel format at this video path output. 🎨
• payload — the output data frame payload size. 📦
• out_frame — the output pixel resolution. 🖼️
• state — the video path's state. 🧭
• fmt_flags — flags determining supported pixel formats. 🚩
• id — CAMIF id, 0 - codec, 1 - preview. 🆔
• rotation — current image rotation value. 🔄
• hflip — apply horizontal flip if set. ↔️
• vflip — apply vertical flip if set. ↕️
• offset — register offset. 📍

👀 SEE ALSO 👀

Go peek at these, bestie — the whole friend group:

• Kernel file ./drivers/media/platform/samsung/s3c-camif/camif-core.h
• struct camif_fmt(9)
• struct camif_dma_offset(9)
• struct camif_frame(9)
• struct s3c_camif_variant(9)
• struct camif_dev(9)
• struct camif_addr(9)
• struct camif_buffer(9)

This struct camif_vp(9) page's source/version is ./drivers/media/platform/samsu..., dated October 2026. That's the footer energy, folded into a cute sign-off — now go read the source, bestie! 🫶💖