Fix "xHCI host controller not responding, assume dead" w/o rebooting

revive-xhci.bash

#!/usr/bin/env bash

# Re-run the script as root if not already running as root
if [ "$EUID" -ne 0 ]; then
  echo "This script requires root. Re-running with sudo..."
  exec sudo "$0" "$@"
fi

ID="0000:00:14.0" # your controller id; look for ID with `sudo ls /sys/bus/pci/drivers/xhci_hcd/` (SUDO REQUIRED)

echo "Unbinding xHCI controller #$ID..." # fix bluetooth and usb disappearing
echo -n "$ID" > /sys/bus/pci/drivers/xhci_hcd/unbind
echo "Binding #$ID back..."
echo -n "$ID" > /sys/bus/pci/drivers/xhci_hcd/bind
# SOURCEs: https://bbs.archlinux.org/viewtopic.php?pid=1782456#p1782456; https://techoverflow.net/2021/09/16/how-i-fixed-xhci-host-controller-not-responding-assume-dead/