STRUCT S3C2410_WDT_VARIANT(9)

✨ struct s3c2410_wdt_variant ✨

okay bestie, so this page is from the Kernel API Manual and it's literally all about struct s3c2410_wdt_variant — that's the per-variant config data struct 🎀 like, every Samsung watchdog IP-core gets to have its own little personality file, and this is it. no cap.

💅 SYNOPSIS

struct s3c2410_wdt_variant {
    int disable_reg;
    int mask_reset_reg;
    bool mask_reset_inv;
    int mask_bit;
    int rst_stat_reg;
    int rst_stat_bit;
    int cnt_en_reg;
    int cnt_en_bit;
    u32 quirks;
 };

look at her. nine members, all gorgeous, all doing their own lil job 🫶

🌸 Members

so let's do a vibe check on every single field, one by one, because they ALL matter:

• disable_reg — Offset in pmureg for the register that disables the watchdog timer reset functionality. like, this is where you go to turn the reset off 💀
• mask_reset_reg — Offset in pmureg for the register that masks the watchdog timer reset functionality. masking = hiding, and this one hides the reset 🎭
• mask_reset_inv — If set, mask_reset_reg value will have inverted meaning. so, like, backwards logic — if this is true, read that register the opposite way 🙈
• mask_bit — Bit number for the watchdog timer in the disable register and the mask reset register. yep, one bit, two registers, iconic crossover ✨
• rst_stat_reg — Offset in pmureg for the register that has the reset status. this is the receipts register, it tells you if a reset happened 📋
• rst_stat_bit — Bit number in the rst_stat register indicating a watchdog reset. the one specific bit that says "yeah, the watchdog did that" 👑
• cnt_en_reg — Offset in pmureg for the register that enables WDT counter. counter go brrr 🔥
• cnt_en_bit — Bit number for "watchdog counter enable" in cnt_en register. quote marks and all, that's literally the name, iykyk 💅
• quirks — A bitfield of quirks. that's it. that's the description. mysterious. main character energy fr fr 🌈

side note bb: every Offset in pmureg one is an offset in pmureg — don't forget the pmureg part, that's where all the tea lives 💖

🦋 SEE ALSO

• Kernel file ./drivers/watchdog/s3c2410_wdt.c — the actual source, go read her
• Quirk flags for different Samsung watchdog IP-cores(9) — yes that's a whole other manpage, and yes you should read it next, the quirks deserve context 😭

okay that's the whole page bestie, go forth and configure your watchdog variants with confidence 🌟

mwah 💋 — this was the ./drivers/watchdog corner of the kernel docs, dated October 2026, signing off 🎀✨