parport_register_driver(9)

💖 parport_register_driver(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's about parport_register_driver, and honestly? it's giving "parallel port device driver's official debut" ✨

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🌸 NAME 🌸

parport_register_driver — the function that registers your parallel port device driver, literally the "hi i'm here" of parallel port drivers 🫶

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🎀 SYNOPSIS 🎀

parport_register_driver (driver );

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✨ ARGUMENTS ✨

• driver — the structure that describes your driver 💅 like, it's the whole personality of your driver in struct form.

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💜 DESCRIPTION 💜

So here's the vibe: a parallel port device driver calls this so it can get notifications about ports being found in the system, and also about ports that are no longer available 😭 (rip to those ports).

The driver structure is allocated by the caller — that's you, bestie — and it must not be deallocated until after calling parport_unregister_driver. no cap, do not free it early, that's the whole rule 👑

🦋 if you're using the non device model 🦋

• The driver's attach function may block. The port that attach is given will be valid for the duration of the callback, but if the driver wants to take a copy of the pointer, it must call parport_get_port to do so. Calling parport_register_device on that port will do this for you — iconic, it handles it so you don't have to 💖
• The driver's detach function may block. The port that detach is given will be valid for the duration of the callback, but if the driver wants to take a copy of the pointer, it must call parport_get_port to do so. same energy, different function 🧚

⭐ return values ⭐

Returns 0 on success 🎉 The non device model will always succeed, but the new device model can fail and will return the error code — so like, check it, bestie 🙈

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🔥 SEE ALSO 🔥

• Kernel file ./include/linux/parport.h — module_parport_driver(9), parport_yield(9), parport_yield_blocking(9)

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aaaand that's the whole page, bestie! this one's from ./include/linux, dated October 2026 — so like, future vibes only 💫 go register that driver, you absolute main character 👑💅