The driver needs kernel modules as

	usbcore.o
	Kernel Conf: [USB Support]-[Support for USB]

	ehci-hcd.o, usb-uhci, or usb-ochi; depend on your system
	Their kernel configurations are
	ehci-hcd.o: [EHCI HCD (USB 2.0) support]
	usb-uhci.o: [UHCI (Intel PIIX4, VIA,...) support]
	usb-ohci.o: [OHCI (Compaq, iMacs,OPTi, SiS, ALi,...)]

	usbserial.o from kernel or the driver.
	Kernel Conf: [USB Serial Converter support]

	pl2303.o from the driver.
