dwc2_driver_shutdown(9)

💖 dwc2_driver_shutdown(9) 💖

okay so bestie, welcome to this page from the Kernel API Manual — it's giving very specific kernel-business energy, and the main character is dwc2_driver_shutdown. 🫶

✨ NAME ✨

dwc2_driver_shutdown — Called on device shutdown

✨ SYNOPSIS ✨

void dwc2_driver_shutdown (struct platform_device *dev );

🎀 ARGUMENTS 🎀

• dev — Platform device

🦋 DESCRIPTION 🦋

okay so here's the tea: in specific conditions (and yes, this involves usb hubs), dwc2 devices can create a lot of interrupts — like, even to the point of overwhelming devices running at low frequencies. 😭 no cap.

Some devices need to do special clock handling at shutdown-time, and that can bring the system clock below the threshold of being able to handle the dwc2 interrupts. that's the whole vibe check.

Disabling dwc2-irqs prevents reboots/poweroffs from getting stuck in such cases. periodt. 💅

🌈 SEE ALSO 🌈

• Kernel file: ./drivers/usb/dwc2/platform.c
• dwc2_lowlevel_hw_enable(9)
• dwc2_lowlevel_hw_disable(9)
• dwc2_driver_remove(9)
• dwc2_check_core_endianness(9)
• dwc2_check_core_version(9)
• dwc2_driver_probe(9)

Bestie, that's the whole page 💜 — source/version: ./drivers/usb/dwc2, date: October 2026, and it's literally dwc2_driver_shutdown(9). bye! ✨🎀