STRUCT SERDEV_DEVICE_OPS(9)

✨ struct serdev_device_ops(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this little page is all about struct serdev_device_ops, and it's genuinely not as scary as it looks, i promise. it's just the callback ops for a serdev device, no cap.

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🎀 NAME 🎀

struct serdev_device_ops — the callback operations for a serdev device. that's it, that's the vibe. 🦋

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🌸 SYNOPSIS 🌸

here's the whole struct, copied exactly because i would never mess with your code:

struct serdev_device_ops {
    size_t (*receive_buf)(struct serdev_device *, const u8 *, size_t);
    void (*write_wakeup)(struct serdev_device *);
 };

two function pointers, two moods. let's get into them 💅

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⭐ Members ⭐

• receive_buf — this one gets called whenever data comes in from the device 🔥 it returns the number of bytes accepted, and heads up: it may sleep 😴 so don't go calling it from somewhere that can't handle a lil nap.
• write_wakeup — this one fires when you're ready to transmit more data ✨ and the big rule here? it must not sleep 🚫😴 not even a little. keep it quick, keep it awake, periodt.

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🌈 SEE ALSO 🌈

go peek at the kernel file ./include/linux/serdev.h and then these iconic friends:

• struct serdev_device(9)
• struct serdev_device_driver(9)
• struct serdev_controller(9)
• serdev_device_put(9)
• serdev_controller_put(9)
• serdev_device_driver_unregister(9)

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and that's the whole page, bestie 🫶 this came from ./include/linux, dated October 2026, and it's literally titled struct serdev_device_ops(9) — go forth and slay your serdev callbacks 👑💜