Am Dienstag, 22. Juni 2010, 16:10:24 schrieb Greg KH: > On Tue, Jun 22, 2010 at 10:51:32AM -0300, Otavio Salvador wrote: > > Hello, > > > > On Tue, Jun 22, 2010 at 9:56 AM, Greg KH <greg@xxxxxxxxx> wrote: > > > On Tue, Jun 22, 2010 at 09:42:25AM -0300, Otavio Salvador wrote: > > > Why not treat it like a virtual modem, that is how the hardware was > > > designed to be treated, right? > > > > It can't dial. Why treat it as a modem if in fact it is a USB to > > Serial adapter? > > Because that is the USB spec for usb to serial devices :) Well, no. CDC-ACM is clearly modeled on a modem. It has notions like learning about loss of carrier and other stuff and encapsulated commands to an external modem. It is not just a serial driver. If you have a device that uses none of the extended features of cdc-acm, you are better of writing a minimal serial driver. 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
