Am Mittwoch, 23. Juni 2010, 16:36:40 schrieb Greg KH: > > If you have a device that uses none of the extended features of cdc-acm, > > you are better of writing a minimal serial driver. > > True, but you could just ignore all the modem stuff, and send and > receive data from the device, right? That is probably what happens on > Windows, as the device was made to work with the Microsoft-provided > driver. > > So a new driver isn't always needed here. Unfortunately this is not quite so easy. If this device is bound to cdc-acm, we must not only assure that the device works, if it is used as intended, but also must be sure that the failure mode is benign if something treats the device as a true modem. Regards Oliver -- 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