STRUCT MLXREG_WDT(9)

✨ struct mlxreg_wdt — the wd private data era ✨

okay so bestie, this is the mlxreg_wdt page from the Kernel API Manual — literally the private data struct for the watchdog driver, and we're gonna go through it field by field because every single one matters, no cap 💅

🌸 SYNOPSIS 🌸

struct mlxreg_wdt {
    struct watchdog_device wdd;
    struct mlxreg_core_platform_data *pdata;
    void *regmap;
    int action_idx;
    int timeout_idx;
    int tleft_idx;
    int ping_idx;
    int reset_idx;
    int regmap_val_sz;
    enum mlxreg_wdt_type wdt_type;
 };

like, that's the whole vibe of the struct right there 🫶

🎀 Members 🎀

okay so here's the breakdown, one by one, don't skip:

• wdd — the watchdog device itself. main character energy fr fr 👑
• pdata — data received from the platform driver. it's giving hand-me-downs from the platform layer 🌸
• regmap — the register map of the parent device. lowkey the whole family tree lives in here 🌈
• action_idx — index for direct access to the action register. yes, we're indexing INTO it, we're not playing games 💅
• timeout_idx — index for direct access to the TO register. that's the timeout one, iykyk ⭐
• tleft_idx — index for direct access to the time left register. so you always know how much time is left, which is honestly so real of it 😭
• ping_idx — index for direct access to the ping register. ping it. keep it alive. do not let it die 🫶
• reset_idx — index for direct access to the reset cause register. so you can find out WHY things went down, detective energy 🔥
• regmap_val_sz — size of the value in the register map. like, how big the value is. that's it. that's the field 🎀
• wdt_type — the watchdog HW type, typed as enum mlxreg_wdt_type. hardware type check ✅ 👑

🦋 SEE ALSO 🦋

• Kernel file ./drivers/watchdog/mlx_wdt.c — go read it bestie, it's right there 💖

that's the whole page, periodt 💜 this gem lives under ./drivers/watchdog and it's dated October 2026, and honestly? iconic. slay. go forth and watchdog responsibly 🧚✨