WhyCan Forum(哇酷开发者社区)

HOWTO USE THIS DRIVER
=====================

To load the USB device controller driver and the printer gadget driver. The
following example uses the Netchip 2280 USB device controller driver:

modprobe net2280
modprobe g_printer


The follow command line parameter can be used when loading the printer gadget
(ex: modprobe g_printer idVendor=0x0525 idProduct=0xa4a8 ):

idVendor - This is the Vendor ID used in the device descriptor. The default is
	the Netchip vendor id 0x0525. YOU MUST CHANGE TO YOUR OWN VENDOR ID
	BEFORE RELEASING A PRODUCT. If you plan to release a product and don't
	already have a Vendor ID please see www.usb.org for details on how to
	get one.

idProduct - This is the Product ID used in the device descriptor. The default
	is 0xa4a8, you should change this to an ID that's not used by any of
	your other USB products if you have any. It would be a good idea to
	start numbering your products starting with say 0x0001.

bcdDevice - This is the version number of your product. It would be a good idea
	to put your firmware version here.

iManufacturer - A string containing the name of the Vendor.

iProduct - A string containing the Product Name.

iSerialNum - A string containing the Serial Number. This should be changed for
	each unit of your product.

iPNPstring -  The PNP ID string used for this printer. You will want to set
	either on the command line or hard code the PNP ID string used for
	your printer product.

qlen - The number of 8k buffers to use per endpoint. The default is 10, you
	should tune this for your product. You may also want to tune the
	size of each buffer for your product.