init_SERR(9)

💅 init_SERR

okay so bestie, welcome to the Kernel API Manual (yes that's the manual name, i'm folding it in here so the page doesn't start all weird) — and today's main character is init_SERR. it's giving "small function, big responsibilities" energy tbh. ✨

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🌸 NAME

init_SERR — Initializes the per slot SERR generation. that's it, that's the function. slay. 🎀

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🦋 SYNOPSIS

int init_SERR (struct controller *ctrl );

three things to notice: it returns an int, it takes exactly one argument, and the name is init_SERR with an underscore, not initSERR, so don't come for me in the comments. 💀

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🌈 ARGUMENTS

• ctrl — controller to use. that's the one and only argument, bestie. no optional stuff, no secret third thing. it's the controller. we use it. 🫶

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🔥 DESCRIPTION

For unexpected switch opens.

that's the whole description and honestly? iconic. it does not elaborate. it does not owe you an explanation. it simply exists to handle the unexpected switch opens of it all. 💅

no cap, this is genuinely all the page says — i'm not gonna sit here and invent extra lore that isn't in the source. iykyk. 🙈

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⭐ SEE ALSO

the kernel file where all the magic lives (fr, go read it):

./drivers/pci/hotplug/cpqphp_core.c

and the whole friend group of related functions — collect them all, they're all (9) section entries:

• detect_SMBIOS_pointer(9)
• get_subsequent_smbios_entry(9)
• get_SMBIOS_entry(9)
• get_slot_mapping(9)
• cpqhp_set_attention_status(9)
• set_attention_status(9)

like look at that lineup. SMBIOS this, attention status that. lowkey a whole ecosystem. 👑

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and that's the page!! 🧚 signed off from ./drivers/pci/hotplug with the date October 2026 — that's the source/version line and the date line from the footer, folded into a cute little goodbye instead of just sitting there being a footer. mwah. 💖🌸