Dear all: I download the libusb window's version. And there is an example shows how to recognize USB flash by vendor and device id. Is there better way like use "g:\" to open the device and r/w it instead of filling the vendor/device id by hand. appreciate your help, miloody -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html