STRUCT VDUSE_CONFIG_DATA(9)

✨ struct vduse_config_data(9) ✨

okay so bestie, this is a page straight out of the Kernel API Manual — yes we're in kernel land today, hold my iced coffee 🫶

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💅 NAME 💅

struct vduse_config_data — the little data bundle you use to update configuration space, that's the whole vibe ✨

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🎀 SYNOPSIS 🎀

struct vduse_config_data {
    __u32 offset;
    __u32 length;
    __u8 buffer[];
 };

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🌸 Members 🌸

not me listing the members because they're literally the main characters of this struct 🔥

• offset — the offset from the beginning of configuration space. like, where are we starting, bestie? 📍
• length — the length to write to configuration space. how much are we writing, no cap 💅
• buffer — the buffer used to write from. this is the actual content, the payload, the moment 👑

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🦋 Description 🦋

so what is this thing for? this structure is used by the VDUSE_DEV_SET_CONFIG ioctl to update device configuration space. that's it, that's the tea ☕ periodt.

lowkey iconic that a three-field struct does so much heavy lifting fr fr 💖

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💜 SEE ALSO 💜

go read these too, iykyk 🌈

• Kernel file ./include/uapi/linux/vduse.h
• struct vduse_dev_config(9)
• struct vduse_iotlb_entry(9)
• struct vduse_vq_config(9)
• struct vduse_vq_state_split(9)
• struct vduse_vq_state_packed(9)
• struct vduse_vq_group_asid(9)
• struct vduse_vq_info(9)
• struct vduse_vq_eventfd(9)
• struct vduse_iova_umem(9)
• struct vduse_iova_info(9)
• struct vduse_iotlb_entry_v2(9)
• enum vduse_req_type(9)
• struct vduse_vq_state(9)
• struct vduse_dev_status(9)
• struct vduse_iova_range(9)
• struct vduse_iova_range_v2(9)
• struct vduse_vq_ready(9)
• struct vduse_dev_request(9)
• struct vduse_dev_response(9)

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and that's the page!! 🧚 sign-off time: this one lives in ./include/uapi/linux and it's dated October 2026, so yeah, go off, read your headers, slay 💖✨🎀