STRUCT PCA9570(9)

✨ NAME ✨

okay so welcome to the Kernel API Manual, bestie, and today's main character is struct pca9570 — literally just the GPIO driver data 💅 that's it, that's the whole vibe

🦋 SYNOPSIS 🦋

like, here's the whole thing, no gatekeeping:

struct pca9570 {
    struct gpio_chip chip;
    const struct pca9570_chip_data *chip_data;
    struct mutex lock;
    u8 out;
};

🌸 Members 🌸

now let's meet the cast, iykyk 👑

• chip — the GPIO controller chip itself, the actual star of the show, main character energy fr fr 🎀
• chip_data — the GPIO controller platform data, lowkey the chip's whole backstory, a const struct pca9570_chip_data * no less ✨
• lock — a struct mutex that protects write sequences, so like, please respect the lock, it's literally there for a reason 😭🔒
• out — a u8 buffer for the device register, tiny but iconic, holding it down 🫶

💜 SEE ALSO 💜

• Kernel file ./drivers/gpio/gpio-pca9570.c
• struct pca9570_chip_data(9)

ngl, that's genuinely all of it — no cap, every member, every type, every word. go off 💖

this little group-chat moment was brought to you by ./drivers/gpio, dropped October 2026, starring struct pca9570(9) slay 🧚⭐💀