firmware_upload_register(9)

💖 firmware_upload_register(9) 💖

okay so like, hi bestie!! you found the <pink>Kernel API Manual</pink> page for firmware_upload_register — yeah it's a whole (9) section situation, we're doing kernel-internal stuff today and honestly? we're thriving 🫶

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✨ NAME ✨

firmware_upload_register — literally the function where you register for the firmware upload sysfs API 🎀

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🌸 SYNOPSIS 🌸

struct fw_upload * firmware_upload_register (struct module *module ,
struct device *parent , const char *name , const struct fw_upload_ops
*ops , void *dd_handle );

like yes it's a long signature, no we're not scared of it 💅

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🦋 ARGUMENTS 🦋

• module — the kernel module of this device, aka who this whole thing belongs to 👑
• parent — the parent device that's instantiating firmware upload 🌈
• name — the firmware name you're associating with this device; pick good ones bestie, it matters (see DESCRIPTION, stay with me) 💖
• ops — pointer to a structure of firmware upload ops, the whole personality of the upload ngl 🎀
• dd_handle — pointer to the parent driver's private data, your little stash of secrets 🙈

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⭐ DESCRIPTION ⭐

okay so the actual tea: name must be unique among all users of firmware upload. Not "should", not "ideally" — must. If you're out here duplicating names, that's not slay, that's a vibe check failure 😭

and then the firmware sysfs files for this device? you'll find them at:

/sys/class/firmware/name

iconic. the way that path just sits there being all discoverable 🧚

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🔥 RETURN 🔥

returns a struct fw_upload pointer — or an ERR_PTR if things went sideways 💀 (check it, always check it, no cap)

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🎀 SEE ALSO 🎀

• Kernel file ./drivers/base/firmware_loader/sysfs_upload.c — go read the source, it ate 👑
• firmware_upload_unregister(9) — the other half of the story, the goodbye arc 🦋

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and that's the page!! mwah 💜 this little beauty lives under ./drivers/base/firmware_loader and it's dated October 2026, so like, mark your calendar bestie — periodt ✨🌸💅