serdev_controller_add(9)

✨ serdev_controller_add(9) ✨

okay bestie, so this is a page from the Kernel API Manual (the serdev_controller_add one, iykyk) and it's literally the glow-up your controller needs before the serdev core will even look at it 💅

💖 NAME 💖

serdev_controller_add — add a serdev controller 🎀

🌸 SYNOPSIS 🌸

int serdev_controller_add (struct serdev_controller *ctrl );

🦋 ARGUMENTS 🦋

• ctrl — the controller you want to register. like, the actual one. hand it over 🫶

⭐ DESCRIPTION ⭐

So basically? You register a controller that you already allocated earlier with serdev_controller_alloc (yes, that one, the alloc one, you need that first bestie, no skipping steps 🙈) with the serdev core. That's it. That's the whole vibe. main character energy ✨

ngl the description is short but it's doing exactly what it says on the tin — alloc first, then add. don't come for me, that's literally all the page says 💀

👑 SEE ALSO 👑

Kernel file ./drivers/tty/serdev/core.c — and also these iconic little functions, go look at them too bestie:

• serdev_device_add(9)
• serdev_device_remove(9)
• serdev_device_write_buf(9)
• serdev_device_write(9)
• serdev_device_alloc(9)
• serdev_controller_alloc(9)
• of_find_serdev_controller_by_node(9)
• serdev_acpi_get_uart_resource(9)
• serdev_controller_remove(9)
• __serdev_device_driver_register(9)

and that's the whole page, periodt 💜 this lil beauty lives in ./drivers/tty/serdev and the manual itself is dated October 2026 — so yeah, future-coded fr fr 🕰️✨ mwah, go register that controller, you got this 🫶🎀