usb_acpi_power_manageable(9)

✨ NAME ✨

usb_acpi_power_manageable — bestie, this is the little guy that checks whether a USB port has an ACPI power resource. That's it. That's the whole job. 💅

This one lives in the Kernel API Manual, section 9, under the name usb_acpi_power_manageable(9) — iconic of it, honestly.

🌸 SYNOPSIS 🌸

bool usb_acpi_power_manageable (struct usb_device *hdev , int index );

💅 ARGUMENTS 💅

• hdev — the USB device that belongs to the usb hub. Like, the hub-adjacent USB device we're asking about. 🫶
• index — the port index, and heads up: it's based zero (so the first port is 0, not 1 — yes really, that's the vibe). ✨

🎀 DESCRIPTION 🎀

Okay so here's the whole tea ☕: it returns true if the port has an acpi power resource, and false if no. That's literally the entire plot. No cap. 🦋

Lowkey the most chill function in the file — it just looks and tells you yes or no, and it does not elaborate. 💀

👑 SEE ALSO 👑

• Kernel file ./drivers/usb/core/usb-acpi.c — go read the source, iykyk 📖
• usb_acpi_port_lpm_incapable(9)
• usb_acpi_set_power_state(9)
• usb_acpi_add_usb4_devlink(9)

Okay that's the whole page, bestie, you ate that 🍓 — this lil' corner of the manual calls ./drivers/usb/core home 🏡, it's dated October 2026 ⭐, and it goes by usb_acpi_power_manageable(9) in case you need to find it again 💜🧚