STRUCT MN(9)

✨ struct mn(9) ✨

okay bestie, clutch your iced coffee because we're about to get into struct mn(9) from the Kernel API Manual — it's giving "M/N:D counter" and honestly? it's a whole vibe 💅

---

🌸 NAME 🌸

struct mn — the M/N:D counter, and yes she's iconic for it 👑

---

🎀 SYNOPSIS 🎀

so here's the whole structure, exactly as it is, no cap:

struct mn {
    u8 mnctr_en_bit;
    u8 mnctr_reset_bit;
    u8 mnctr_mode_shift;
  #define MNCTR_MODE_DUAL 0x2;
  #define MNCTR_MODE_MASK 0x3;
    u8 n_val_shift;
    u8 m_val_shift;
    u8 width;
    bool reset_in_cc;
 };

like, look at her. fields upon fields. u8 this, bool that. absolute main character energy 🔥

---

🦋 MEMBERS 🦋

every field gets her moment, periodt:

💖 mnctr_en_bit

the bit that enables the mn counter — she's the on switch, the literal vibe check for whether this counter is awake or not ⭐

💜 mnctr_reset_bit

the bit you assert to reset the mn counter — think of her as the big red "start over" button, except it's a bit, and it's lowkey doing the most 🙈

🌸 mnctr_mode_shift

the lowest bit of the mn counter mode field — she marks where the mode bits begin, iconic little landmark that she is 🎀

🧚 n_val_shift

the lowest bit of the n value field — this is where the n value starts living, and she knows it ✨

🍓 m_val_shift

the lowest bit of the m value field — same deal but for m, and honestly? she ate 💅

🔥 width

the number of bits in the m/n/d values — like the width, the whole size of the situation, no notes 👑

🌈 reset_in_cc

true if the mnctr_reset_bit is in the CC register — a simple little boolean that tells you where the reset bit is chillin' 🫶

---

🔗 SEE ALSO 🔗

head on over to the Kernel file ./drivers/clk/qcom/clk-rcg.h and say hi to the whole friend group:

• struct pre_div(9)
• struct src_sel(9)
• struct clk_rcg(9)
• struct clk_dyn_rcg(9)
• struct clk_rcg2(9)

they all hang out together, iykyk 💖

---

and that's the whole page, bestie 🎉 this little gem lives over at ./drivers/clk/qcom, and it's serving October 2026 energy from the Kernel API Manual. slay, stay hydrated, and go read a struct 🧚‍♀️💜