issei_register(9)

💖 issei_register(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page for issei_register, and it's literally the moment your issei character device gets born. registering it, putting it on the map, giving it main character energy. let's go 🎀

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✨ NAME ✨

issei_register — register issei character device 🦋

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🌸 SYNOPSIS 🌸

struct issei_device * issei_register (size_t hw_size , struct device
       *parent , const struct issei_dma_length *dma_length , const struct
       issei_hw_ops *ops );

like, that's the whole signature. four arguments, one pointer back. iconic. 👑

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💅 ARGUMENTS 💅

• hw_size — the size of the hardware structure you want allocated. yes, the actual size. tell it how much hardware-struct to carve out, bestie 💖
• parent — the parent device. your new device's parent. family tree moment 🌈
• dma_length — a structure with the DMA sizes in it. all the DMA numbers live in there, not scattered around, slay ✨
• ops — the hardware-related operations. the actual behaviour of your hardware, handed over as a struct 🫶

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⭐ RETURN ⭐

you get back a pointer allocated to the issei_device structure 💫 — and if it doesn't work out? error on failure, no cap. 😭

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/misc/issei/cdev.c — go read the source, iykyk 📖
• issei_deregister(9) — the counterpart. the breakup page. go look at it when you're done here 💀

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lowkey remember: this one registers, issei_deregister(9) un-registers. don't mix them up bestie, that's a whole vibe check you don't wanna fail 🙈

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and that's the page!! this whole thing came from the source tree ./drivers/misc/issei, dated October 2026, and it's issei_register(9) all the way down. mwah 💋 🍓 🧚 💜