quirk_poll_c..._port_status(9)

quirk_poll_c..._port_status(9) 🎀

okay so this is a Kernel API Manual page, and the entry is literally quirk_poll_c..._port_status(9) — we are checking the port status, bestie. ✨

✨ NAME ✨

quirk_poll_check_port_status — poll port_status if the device sticks. 💅

🌸 SYNOPSIS 🌸

bool quirk_poll_check_port_status (struct ehci_hcd *ehci );

🦋 ARGUMENTS 🦋

• ehci — the ehci hcd pointer. like literally the ehci hcd pointer, no cap. 🫶

💖 DESCRIPTION 💖

okay so picture this: since EHCI/OHCI controllers on R-Car Gen3 SoCs are possible to be getting stuck very rarely after a full/low usb device was disconnected. 😭 yes, rare, but the possibility is there.

To detect such a situation, the controllers require a special way which poll the EHCI PORTSC register. that's the whole quirk vibe. 🔥

⭐ RETURN ⭐

Returns true if the controller's port_status indicated getting stuck. periodt. ✅

🌈 SEE ALSO 🌈

• Kernel file ./drivers/usb/host/ehci-platform.c
• quirk_poll_rebind_companion(9)

mwah 💋 this page is from ./drivers/usb/host, dated October 2026, and it's the quirk_poll_c..._port_status(9) manual page — bye bestie, go poll responsibly 🫶💜