On Tue, Mar 19, 2013 at 11:30:05AM -0400, jonsmirl@xxxxxxxxx wrote: > How can you achieve plug and play for a ft2232 based USB serial device > implementing 802.15.4 networking? > > The device has a 802.15.4 SOC with a UART attached to a ft2232. With > firmware loaded the only thing it can do is talk the 802.15.4 tty line > discipline, it is not a general purpose serial port. > > Right now the device works by plugging it in and it appears as a > generic USB serial device like ttyUSB0. You then run a user space app > which sets the line discipline, holds the port open and attaches it to > the 6lowpan implementation in the networking code. But doing that is > inconvenient and users needs to be trained to do it. Much simpler if > we could just plug the device in and it worked. > > We can add a EEPROM to the ft2232 to give it a unique USB ID. Is it > possible to make a kernel driver that see this ID, sets the line > discipline and wires the serial port directly into the networking > code? Yes, you can do that. greg k-h -- 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
