STRUCT AD7150_CHIP_INFO(9)

💖 struct ad7150_chip_info(9) 💖

okay so bestie, welcome to the Kernel API Manual entry for struct ad7150_chip_info — literally the pod of data that holds all the instance-specific chip tea for the AD7150. it's giving "every chip needs its own little diary" energy and honestly? iconic. 🎀

---

✨ NAME ✨

struct ad7150_chip_info — instance specific chip data 🫶

so like, the struct itself is the main character here. it stores everything that's specific to one instance of this chip. no cap.

---

🌸 SYNOPSIS 🌸

struct ad7150_chip_info {
    struct i2c_client *client;
    u16 threshold[2][2];
    u8 thresh_sensitivity[2][2];
    u8 thresh_timeout[2][2];
    struct mutex state_lock;
    int interrupts[2];
    bool int_enabled[2];
    enum iio_event_type type;
    enum iio_event_direction dir;
 };

like, look at her. the arrangement. the brackets. she ate. 💅

---

🦋 Members 🦋

here's the member-by-member breakdown, bestie, because every single one of these little fields matters and i refuse to skip a single one:

• client — the i2c client for this device. that's her ride. that's who she talks to. 🚗
• threshold — the thresholds for the simple capacitance value events.
• thresh_sensitivity — the threshold for simple capacitance offset from the 'average' value. keeping it in its lane, basically.
• thresh_timeout — a timeout, in samples, counting from the moment an adaptive threshold event occurs to when the average value jumps to the current value. and ngl, the layout is a little puzzle box, so listen up:
  • bits 3:0 — timeout receding — applies if below the lower threshold
  • bits 7:4 — timeout approaching — applies if above the upper threshold

yes, it's made up of two fields. yes, it's that girl. 😭

• state_lock — a mutex that makes sure this structure's state stays consistent w.r.t. the hardware. the literal bodyguard of the struct. 🛡️
• interrupts — one or two interrupt numbers, depending on the device type.
• int_enabled — is a given interrupt currently enabled. straight up yes/no vibes. ✨
• type — threshold type.
• dir — threshold direction. which way are we going? nobody knows (the struct knows). 💫

---

👑 SEE ALSO 👑

• Kernel file ./drivers/iio/cdc/ad7150.c — go read it, bestie, it's right there 🍓

---

and that's the whole vibe check, bestie — Kernel API Manual, ./drivers/iio/cdc, dated October 2026, page struct ad7150_chip_info(9). mwah. 💋 slay ✨