STRUCT AD5791_STATE(9)

💖 struct_ad5791_state(9) — Kernel API Manual, bestie edition 💖

okay so this is the Kernel API Manual page for struct ad5791_state, and it is literally the driver instance specific data. no cap, we're getting into it. ✨

🌈 NAME 🌈

struct ad5791_state — driver instance specific data. that's the whole name section and it ate. 💅

✨ SYNOPSIS ✨

here's the struct in all its main-character glory — keep it exact, bestie, every field is doing its little job:

       struct ad5791_state {
           struct spi_device               *spi;
           struct gpio_desc                *gpio_reset;
           struct gpio_desc                *gpio_clear;
           struct gpio_desc                *gpio_ldac;
           const struct ad5791_chip_info   *chip_info;
           struct spi_message              offload_msg;
           struct spi_transfer             offload_xfer;
           struct spi_offload              *offload;
           struct spi_offload_trigger      *offload_trigger;
           unsigned int                    offload_trigger_hz;
           unsigned short                  vref_mv;
           unsigned int                    vref_neg_mv;
           unsigned ctrl;
           unsigned pwr_down_mode;
           bool pwr_down;
           union {
             __be32 d32;
             u8 d8[4];
           } data[3];
        };

🫶 Members 🫶

every member, explained with zero gatekeeping:

• spi — spi_device. 🌀
• gpio_reset — reset gpio. 💅
• gpio_clear — clear gpio. ✨
• gpio_ldac — load dac gpio. 🎀
• chip_info — chip model specific constants. 🦋
• offload_msg — spi message used for offload. 🌸
• offload_xfer — spi transfer used for offload. 🫶
• offload — offload device. 🔥
• offload_trigger — offload trigger. 👑
• offload_trigger_hz — offload sample rate. 🌈
• vref_mv — actual reference voltage used. ⭐
• vref_neg_mv — voltage of the negative supply. 💀
• ctrl — control register cache. 🙈
• pwr_down_mode — current power down mode. 🍓
• pwr_down — true if device is powered down. 🧚
• data — spi transfer buffers. 💜

🦋 SEE ALSO 🦋

• Kernel file ./drivers/iio/dac/ad5791.c
• struct ad5791_chip_info(9)
• ./drivers/iio/dac

💌 signed, sealed, delivered from ./drivers/iio/dac — October 2026 — struct_ad5791_state(9). bye bestie, go read the source! 🫶✨👑