usb_acpi_get_companion_for_port 183 drivers/usb/core/usb-acpi.c adev = usb_acpi_get_companion_for_port(port_dev); usb_acpi_get_companion_for_port 221 drivers/usb/core/usb-acpi.c return usb_acpi_get_companion_for_port(port_dev);