Hello, On Wed, Jun 23, 2010 at 11:36 AM, Greg KH <greg@xxxxxxxxx> wrote: > On Wed, Jun 23, 2010 at 10:06:32AM +0200, Oliver Neukum wrote: >> 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. > > 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 it would be nice to have a common decision about it; if it works as CDC ACM should it be let as it or we should add a generic driver for it? I think we could let it work _but_ find a way to export the NOT_A_MODEM quirk somewhere. That would allow the system to handle it differently. What people think? -- Otavio Salvador O.S. Systems E-mail: otavio@xxxxxxxxxxxxxxxx http://www.ossystems.com.br Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br -- 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
