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? There is already a driver in the 6lowpan code that turns the line discipline into a net device. In this case there is no need for the ttyUSB0 device to appear in user space. -- Jon Smirl jonsmirl@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
