STRUCT MEI_WDT(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct mei_wdt(9) — like, the mei watchdog driver bestie ✨

okay so real talk, this is from the Kernel API Manual and it's literally the struct that runs the mei watchdog driver. it's giving "kernel internals but make it cute" 🎀 stay with me, it's actually not that deep.

✨ NAME ✨

struct mei_wdt — the mei watchdog driver, periodt 💖

🦋 SYNOPSIS 🦋

no cap, here's the whole struct, character for character, don't @ me:

struct mei_wdt {
    struct watchdog_device wdd;
    struct mei_cl_device *cldev;
    enum mei_wdt_state state;
    bool resp_required;
    struct completion response;
    struct work_struct unregister;
    struct mutex reg_lock;
    u16 timeout;
  #if IS_ENABLED(CONFIG_DEBUG_FS);
    struct dentry *dbgfs_dir;
  #endif ;
 };

🌸 Members 🌸

okay let's go member by member, i gotchu 🫶

  • wdd — the watchdog device. main character energy fr 👑
  • cldev — the mei watchdog client device. it's the bestie that actually connects 💅
  • state — the watchdog's internal state. vibe check, but for the driver 🌈
  • resp_required — ping required response. yes, it wants a reply, don't leave it on read 😭
  • response — the ping response completion. the "they finally texted back" moment ✨
  • unregister — the unregister worker. it does the cleanup duties 🧹
  • reg_lock — the watchdog device registration lock. nobody touches the registration while this is held, no cap 🔒
  • timeout — the watchdog's current timeout. a u16, so keep it in range bestie 🌸
  • dbgfs_dir — the debugfs dir entry. only exists when IS_ENABLED(CONFIG_DEBUG_FS) is true, iykyk 🐛

🎀 SEE ALSO 🎀

literally go read these next, they're all in the kernel file ./drivers/watchdog/mei_wdt.c:

ngl this page is short but it ate 💀 every field matters, so don't skip any of 'em.

and that's the whole thing bestie, mwah 💋 this came out of ./drivers/watchdog and it's dated October 2026 — slay, go forth and watchdog responsibly 🌟💜

📦 where this page comes from