pciehp_card_present(9)

okay so this is pciehp_card_present(9) from the Kernel API Manual, and it's giving “is the card actually in the slot rn?” energy. 👀💳✨

🌸 NAME 🌸

pciehp_card_present — Is the card present 💖

✨ SYNOPSIS ✨

int pciehp_card_present (struct controller *ctrl );

🎀 ARGUMENTS 🎀

• ctrl — the PCIe hotplug controller. That's the main character we're asking about. 🎛️👑

💅 DESCRIPTION 💅

So this function checks whether the card is currently present in the slot, and if it is, it returns true. Slay. ✅💳

Big caveat bestie: the card can be removed immediately after the check 😭, so the caller may need to take that into account. Don't get caught lacking. 🙈

If the hotplug controller itself is not available anymore, it returns -ENODEV. 💀

🦋 SEE ALSO 🦋

• Kernel file ./drivers/pci/hotplug/pciehp_hpc.c
• pcie_write_cmd(9)
• pciehp_check_link_active(9)
• pciehp_card_present_or_link_active(9)
• pciehp_set_indicators(9)
• pciehp_slot_reset(9)

okay final cute sign-off: this page lives under ./drivers/pci/hotplug, it's dated October 2026, and it's the pciehp_card_present(9) manual page. catch u later bestie 🫶💖🌈