dfl_fme_create_region(9)

✨ dfl_fme_create_region(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one's called dfl_fme_create_region and it lives in the kernel, section 9. it's giving "glow-up for a platform device" energy, iykyk 🦋

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🌸 NAME 🌸

dfl_fme_create_region — literally creates an fpga region platform device as a child 🎀

like. that's the whole vibe. it makes the region device, and that device is a child. no cap.

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✨ SYNOPSIS ✨

struct dfl_fme_region * dfl_fme_create_region (struct
dfl_feature_dev_data *fdata , struct platform_device *mgr , struct
platform_device *br , int port_id );

she takes four things and hands you back a pointer. slay 🔥

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🫶 ARGUMENTS 🫶

• fdata — the fme feature dev data 💅 that's the feature dev data for the fme, bestie, it's right there in the name.
• mgr — the mgr platform device, which is needed for the region 👑
• br — the br platform device, also needed for the region 🌈
• port_id — the port id 🍓 (yes. that's it. that's the description. iconic of the original honestly)

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⭐ RETURN ⭐

you get the fme region if it worked, and an error code otherwise 😭 so like. always check. don't just trust it. fr fr.

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🦋 SEE ALSO 🦋

kernel file ./drivers/fpga/dfl-fme-pr.c — go read it, it's right there 💜

and the whole friend group:

• dfl_fme_create_mgr(9)
• dfl_fme_destroy_mgr(9)
• dfl_fme_create_bridge(9)
• dfl_fme_destroy_bridge(9)
• dfl_fme_destroy_bridges(9)
• dfl_fme_destroy_region(9)
• dfl_fme_destroy_regions(9)

notice how there's a create and a destroy for basically everything? yeah. that's the circle of life, kernel edition 💀 please actually call the destroy ones, i'm begging 🙈

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lowkey a reminder: this page is from ./drivers/fpga and it's dated October 2026 — that's the source/version and date info, bestie, don't come for me, it's in the footer of the original and now it's in this cute little sign-off instead 🎀

okay that's the whole page, mwah, go forth and create regions responsibly 💖✨🧚