STRUCT AXXIA_I2C_DEV(9)

💖 struct axxia_i2c_dev(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this is the page for struct axxia_i2c_dev, aka the I2C device context — no cap, it's giving “all the I2C state in one struct” 💅

🌸 NAME 🌸

struct axxia_i2c_dev — I2C device context 🦋

✨ SYNOPSIS ✨

struct axxia_i2c_dev {
    void __iomem *base;
    struct i2c_msg *msg;
    struct i2c_msg *msg_r;
    size_t msg_xfrd;
    size_t msg_xfrd_r;
    int msg_err;
    struct completion msg_complete;
    struct device *dev;
    struct i2c_adapter adapter;
    struct clk *i2c_clk;
    u32 bus_clk_rate;
    bool last;
    struct i2c_client *slave;
    int irq;
};

🎀 Members 🎀

okay members section, let’s go — each field gets its own little moment 💖

• base — pointer to register struct. yep, that’s the spot.
• msg — pointer to current message ✨
• msg_r — pointer to current read message (sequence transfer) 🦋
• msg_xfrd — number of bytes transferred in tx_fifo 👑
• msg_xfrd_r — number of bytes transferred in rx_fifo 🌸
• msg_err — error code for completed message 😭
• msg_complete — xfer completion object 🎀
• dev — device reference 🫶
• adapter — core i2c abstraction 💜
• i2c_clk — clock reference for i2c input clock ⭐
• bus_clk_rate — current i2c bus clock rate 🌈
• last — a flag that says whether this is the last message in the transfer 💅
• slave — associated i2c_client 🔥
• irq — platform device IRQ number 💀

🔭 SEE ALSO 🔭

• Kernel file ./drivers/i2c/busses/i2c-axxia.c — go look, iykyk 🧚

sign-off bestie 🫶 this one came from source/version ./drivers/i2c/busses and is dated October 2026 — mwah 💋 stay iconic ✨