STRUCT RZG2L_CRU_DEV(9)

🌸 struct rzg2l_cru_dev(9) 🌸

okay bestie, welcome to the Kernel API Manual 💖 this is literally the page for struct rzg2l_cru_dev(9) — the Renesas CRU device structure. no cap, it's giving "one struct to rule the whole CRU" energy and I'm obsessed. 🎀

✨ NAME ✨

struct rzg2l_cru_dev — Renesas CRU device structure 💅

💅 SYNOPSIS 💅

struct rzg2l_cru_dev {
    struct device *dev;
    void __iomem *base;
    const struct rzg2l_cru_info *info;
    struct reset_control *presetn;
    struct reset_control *aresetn;
    struct clk *vclk;
    struct video_device vdev;
    struct v4l2_device v4l2_dev;
    u8 num_buf;
    u8 svc_channel;
    struct v4l2_async_notifier notifier;
    struct rzg2l_cru_ip ip;
    struct rzg2l_cru_csi csi;
    struct media_device mdev;
    struct mutex mdev_lock;
    struct media_pad pad;
    spinlock_t hw_lock;
    dma_addr_t buf_addr[RZG2L_CRU_HW_BUFFER_DEFAULT];
    unsigned int active_slot;
    struct mutex lock;
    struct vb2_queue queue;
    void *scratch;
    dma_addr_t scratch_phys;
    spinlock_t qlock;
    struct vb2_v4l2_buffer *queue_buf[RZG2L_CRU_HW_BUFFER_MAX];
    struct list_head buf_list;
    unsigned int sequence;
    struct v4l2_pix_format format;
};

no notes, she's perfect 💅✨

👑 MEMBERS 👑

okay so let's meet the whole cast, every single one, fr fr — no member left behind 🫶

• dev — the (OF) device 💖 like, the parent device, the whole reason we're here.
• base — the device I/O register space, remapped to virtual memory ✨ the hardware's home address, basically.
• info — info about the CRU instance 🌸 the lore.
• presetn — the CRU_PRESETN reset line 🎀
• aresetn — the CRU_ARESETN reset line 💅
• vclk — the CRU Main clock ⏰ iconic behavior.
• vdev — the V4L2 video device associated with the CRU 🎥 main character.
• v4l2_dev — the V4L2 device 🦋
• num_buf — holds the current number of buffers enabled 🔢
• svc_channel — the SVC0/SVC1/SVC2/SVC3 to use for RZ/G3E 🚦 choose your fighter.
• notifier — the V4L2 asynchronous subdevs notifier 📣
• ip — image processing subdev info 🖼️
• csi — CSI info 📷
• mdev — media device 🎬
• mdev_lock — protects the count, notifier and csi members 🔒 do not touch, she's locked.
• pad — media pad for the video device entity 🧚
• hw_lock — protects the active_slot counter, hardware programming of slot addresses and the buf_addr[] list 🔐 very serious, very locked.
• buf_addr — memory addresses where current video data is written 📝💾
• active_slot — the slot in use 🎯
• lock — protects queue 🔒
• queue — vb2 buffers queue 📚
• scratch — cpu address for the scratch buffer 🧠✨
• scratch_phys — physical address of the scratch buffer 🧠📍
• qlock — protects queue_buf, buf_list, and sequence 🔐
• queue_buf — keeps track of buffers given to the HW slot 🗂️
• buf_list — list of queued buffers 📋
• sequence — V4L2 buffers sequence number 🔢
• format — active V4L2 pixel format 🎨

🌈 SEE ALSO 🌈

• Kernel file ./drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h 📁
• struct rzg2l_cru_ip_format(9) 💜

and that's the whole page, bestie! 🎀 brought to you by the source/version line ./drivers/media/platform/renes... and dated October 2026 — yeah the footer got a lil truncated but she's still iconic 💅✨ periodt.