Hi, On Fri, Dec 11, 2009 at 10:59:29AM -0800, Greg KH wrote: > Also, does the windows cdc acm driver accept devices with > USB_CDC_PROTO_NONE? The Windows ACM driver has no class or device bindings at all, it is shipped without a .inf file. Individual vendors then ship a .inf referencing the driver, which then accepts any device it is bound to, even if it is not really an ACM device (AFAIK, it accepts anything that either has an interface of Communications class or the standard layout with 1 control, 1 interrupt, 2 bulk endpoints, much like Linux's usbserial driver. Simon -- 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