STRUCT RVIN_DEV(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct rvin_dev(9)

okay so this page lives in the Kernel API Manual, and bestie, it's literally a whole tour of struct rvin_dev — the Renesas VIN device structure. grab a strawberry drink 🍓 and let's get into it.

✨ NAME ✨

struct rvin_dev — the Renesas VIN device structure. that's it, that's the vibe. 💜

🦋 SYNOPSIS 🦋

struct rvin_dev {
    struct device *dev;
    void __iomem *base;
    const struct rvin_info *info;
    struct video_device vdev;
    struct v4l2_device v4l2_dev;
    struct v4l2_ctrl_handler ctrl_handler;
    struct rvin_parallel_entity parallel;
    struct rvin_group *group;
    unsigned int id;
    struct media_pad pad;
    struct mutex lock;
    struct vb2_queue queue;
    void *scratch;
    dma_addr_t scratch_phys;
    spinlock_t qlock;
    struct {
      struct vb2_v4l2_buffer *buffer;
      dma_addr_t phys;
    } buf_hw[HW_BUFFER_NUM];
    struct list_head buf_list;
    unsigned int sequence;
    bool running;
    bool is_csi;
    unsigned int chsel;
    u32 mbus_code;
    struct v4l2_pix_format format;
    struct v4l2_rect crop;
    struct v4l2_rect compose;
    void (*scaler)(struct rvin_dev *vin);
    unsigned int alpha;
 };

like, look at her. main character energy fr fr 👑

🎀 MEMBERS 🎀

  • dev — the (OF) device. she's the anchor, the literal source of truth for this whole struct 💖
  • base — the device I/O register space, remapped to virtual memory. iykyk 🌸
  • info — info about the VIN instance. the lore, basically ✨
  • vdev — the V4L2 video device associated with VIN 🎀
  • v4l2_dev — the V4L2 device 🦋
  • ctrl_handler — the V4L2 control handler. handle it 💅
  • parallel — parallel input subdevice descriptor 🌈
  • group — Gen3 CSI group 👑
  • id — Gen3 group id for this VIN. know your id bestie 🫶
  • pad — media pad for the video device entity ⭐
  • lock — protects queue 🔒
  • queue — vb2 buffers queue 🧚
  • scratch — cpu address for scratch buffer 🍓
  • scratch_phys — physical address of the scratch buffer 🍓
  • qlock — protects buf_hw, buf_list, sequence and running. so many things, but she's got it 🔥
  • buf_hw — keeps track of buffers given to HW slot 👀
  • buf_list — list of queued buffers 💀
  • sequence — V4L2 buffers sequence number 🔢
  • running — keeps track of if the VIN is running. are you running? are you okay? 🏃‍♀️
  • is_csi — flag to mark the VIN as using a CSI-2 subdevice 🌟
  • chsel — cached value of the current CSI-2 channel selection 📺
  • mbus_code — media bus format code 💫
  • format — active V4L2 pixel format 🎨
  • crop — active cropping ✂️
  • compose — active composing 🖼️
  • scaler — optional scaler. optional but iconic 🌸
  • alpha — alpha component to fill in for supported pixel formats. translucent era 🫧
ngl there are a lot of members here, and every single one of them is doing her own little job. no cap. not one of them is dead weight 💅

🌟 SEE ALSO 🌟

  • Kernel file ./drivers/media/platform/renesas/rcar-vin/rcar-vin.h
  • struct rvin_video_format(9)
  • struct rvin_parallel_entity(9)
  • struct rvin_group_route(9)
  • struct rvin_info(9)
  • struct rvin_group(9)

like, go read those next. they're all in their flop era until you do 🦋

okay that's the whole page!! this one came from ./drivers/media/platform/renes... and it's dated October 2026 — so yeah, future icon behavior 👑✨ thanks for reading, ily, now go write some kernel code 💖

struct rvin_dev(9) — periodt 🎀

📦 where this page comes from