On Wed, Mar 20, 2013 at 7:26 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > 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. Is there an existing driver in the kernel that does this? So far all of the ones I've checked still need a user space app. > > greg k-h -- 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
