of_pci_get_slot_power_limit(9)

📦 version 7.3.1, in nixpkgs unstable

💅 of_pci_get_slot_power_limit(9) — Kernel API Manual energy ✨

okay so bestie, welcome to the Kernel API Manual entry for of_pci_get_slot_power_limit(9) — yes the whole thing, no skips, we are doing this properly 🫶

🌸 NAME 🌸

of_pci_get_slot_power_limit — literally just parses the "slot-power-limit-milliwatt" property 💖 that's the whole vibe, no cap.

✨ SYNOPSIS ✨

u32 of_pci_get_slot_power_limit (struct device_node *node , u8
*slot_power_limit_value , u8 *slot_power_limit_scale );

yep that's the whole signature, look at her go 👑

🎀 ARGUMENTS 🎀

  • node — the device tree node that's holding the slot power limit info. this is the main character of the call fr fr 🌈
  • slot_power_limit_value — a pointer to where the value should get stored, in PCIe Slot Capabilities Register format. so like, that exact format, not whatever format, okay? 😭
  • slot_power_limit_scale — same deal but for the scale — pointer to where the scale goes, also in PCIe Slot Capabilities Register format 💅

🦋 DESCRIPTION 🦋

So what does she actually do? She returns the slot power limit in milliwatts ⚡ and if the slot_power_limit_value and slot_power_limit_scale pointers are non-NULL, she fills in the value and the scale using the format that the PCIe Slot Capabilities Register uses. iykyk 🧚

and if the property is not found or is invalid? she returns 0. that's it. nothing dramatic, just a cool zero 😌

💜 SEE ALSO 💜

the Kernel file ./drivers/pci/of.c is right here bestie, plus the whole friend group 🫶:

and that's the page!! 🎀 sign-off time: this lil slice of lore lives in ./drivers/pci, dated October 2026, and the header is of_pci_get_slot_power_limit(9) in case you forgot already 🙈 — go read the source, slay, periodt 💖✨

📦 where this page comes from