STRUCT WMI_BUFFER(9)

💖 NAME 💖

struct wmi_buffer — the WMI data buffer, aka the lil container that carries your bytes around 🎀

okay so real quick, before we even get into it: this whole page lives in the Kernel API Manual, and the star of the show is struct wmi_buffer. That's it. That's the vibe. ✨

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🌸 SYNOPSIS 🌸

struct wmi_buffer {
    size_t length;
    void *data;
 };

no cap, that's the whole struct. two members. iconic minimalism. 👑

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🫶 Members 🫶

• length — she's the buffer length, measured in bytes. the receipts of how much data is actually in there 📏
• data — a pointer to the buffer content itself. like, the actual stuff. the main character pointer 💅

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🦋 Description 🦋

okay so what is this thing for? bestie, this structure is literally how you exchange data with the WMI driver core. that's the whole job. she's a messenger 🧚 and she does it well.

not me being obsessed with a two-field struct. she's lowkey perfect though. fr fr.

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🌈 SEE ALSO 🌈

like, go read these next, iykyk 👀

• Kernel file ./include/linux/wmi.h 🌟
• struct wmi_device(9)
• to_wmi_device(9)
• struct wmi_string(9)
• struct wmi_driver(9)
• to_wmi_driver(9)
• wmi_driver_register(9)
• module_wmi_driver(9)

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and that's a wrap, bestie 🎀 this little entry comes to you straight out of ./include/linux, stamped October 2026, and it's filed under struct wmi_buffer(9) in the Kernel API Manual. slay, go read the WMI driver core docs, mwah 💖✨