STRUCT AD7606_STATE(9)

🦋 struct ad7606_state(9) 🦋

okay bestie, welcome to the Kernel API Manual 💖 this is the whole entire page for struct ad7606_state, and it's literally the glow-up your brain needed today. no cap.

✨ NAME ✨

struct ad7606_state — the driver-instance-specific data 🎀 like, every single little thing one AD7606 driver instance needs to keep track of about itself. main character energy fr fr.

🌸 SYNOPSIS 🌸

struct ad7606_state {
    struct device                   *dev;
    const struct ad7606_chip_info   *chip_info;
    const struct ad7606_bus_ops     *bops;
    struct ad7606_chan_info         chan_info[AD760X_MAX_CHANNELS];
    unsigned int                    oversampling;
    struct pwm_device               *cnvst_pwm;
    void __iomem                    *base_address;
    bool sw_mode_en;
    const unsigned int              *oversampling_avail;
    unsigned int                    num_os_ratios;
    struct iio_backend              *back;
    int (*write_scale)(struct iio_dev *indio_dev, int ch, int val);
    int (*write_os)(struct iio_dev *indio_dev, int val);
    struct mutex                    lock;
    struct gpio_desc                *gpio_convst;
    struct gpio_desc                *gpio_reset;
    struct gpio_desc                *gpio_range;
    struct gpio_desc                *gpio_standby;
    struct gpio_desc                *gpio_frstdata;
    struct gpio_descs               *gpio_os;
    struct iio_trigger              *trig;
    struct completion               completion;
    bool offload_en;
    void *bus_data;
    struct {
      union {
        u16 buf16[16];
        u32 buf32[8];
      };
      aligned_s64 timestamp;
    } data;
    __be16 d16[2];
 };

slay, now let's meet every single member one by one 👑

💅 Members 💅

• dev — pointer to the kernel device 🫶 that's the device's whole identity, iconic.
• chip_info — the entry in the table of chips that describes this device 🌈 so it knows which chip it actually is, iykyk.
• bops — the bus operations (SPI or parallel) 🚌 literally how this thing talks to the outside world.
• chan_info — the scale configuration for channels 🎚️ per-channel scale deets, all tucked in here.
• oversampling — the oversampling selection 🔥 which oversampling setting got picked.
• cnvst_pwm — pointer to the PWM device connected to the cnvst pin 🌀 pwm go brrr.
• base_address — the address from where to read data in parallel operation 📍 like, the literal spot you read from when you're in parallel mode.
• sw_mode_en — software mode enabled ✅ true/false vibe check.
• oversampling_avail — pointer to the array which stores the available oversampling ratios 💫 the menu of oversampling options, not the choice itself.
• num_os_ratios — number of elements stored in oversampling_avail array 🔢 so you know how many options are on that menu.
• back — pointer to the iio_backend structure, if used 👀 only if used, okay bestie, don't come for me.
• write_scale — pointer to the function which writes the scale ✍️ yes, a function pointer, yes, it's giving old-school cool.
• write_os — pointer to the function which writes the os 🖊️ another function pointer, same energy.
• lock — protect sensor state from concurrent accesses to GPIOs 🔒 mutual exclusion, no fighting over GPIOs in the group chat please.
• gpio_convst — GPIO descriptor for conversion start signal (CONVST) ⚡ the "go" signal.
• gpio_reset — GPIO descriptor for device hard-reset 🔄 hard reset, dramatic but necessary.
• gpio_range — GPIO descriptor for range selection 📏 picks the range, obvi.
• gpio_standby — GPIO descriptor for stand-by signal (STBY), controls power-down mode of device 😴 it literally decides when the device goes to sleep, relatable.
• gpio_frstdata — GPIO descriptor for reading from device when data is being read on the first channel 🎯 first-channel-reading situation, very specific, very real.
• gpio_os — GPIO descriptors to control oversampling on the device 🎛️ plural, it's a whole struct gpio_descs.
• trig — The IIO trigger associated with the device. 🎬 the trigger, the cue, the moment.
• completion — completion to indicate end of conversion 🏁 it tells everyone "we're done converting, wrap it up".
• offload_en — SPI offload enabled 🚀 yes/no, offload status.
• bus_data — bus-specific variables 📦 the bus's own little bag of stuff.
• data — buffer for reading data from the device 💾 this is where the readings land, including an aligned_s64 timestamp inside it.
• {unnamed_union} — anonymous 🔮 it's an anonymous union, no name, no problem.
• d16 — be16 buffer for reading data from the device 🌸 big-endian be16, two of them: d16[2].

🌟 SEE ALSO 🌟

Kernel file ./drivers/iio/adc/ad7606.h with struct ad7606_chip_info(9), struct ad7606_chan_info(9), struct ad7606_bus_ops(9), and struct ad7606_bus_info(9) 💜 go read those next, bestie, they're all in the same friend group.

that's the whole page, no skips, no cuts 💖 this came from ./drivers/iio/adc, dated October 2026, in the Kernel API Manual — mwah, bye! 🧚✨