> Also, why does this driver need something that the hundreds of other > serial drivers we have in-kernel today do not? What makes it special > over everything else? We certainly will need power management hooks on the tty layer - probably they belong on the tty_port operations. Several things have happened that make it more relevant - power levels have come down to the point that serial ports are no longer off the radar - quite a few embedded and tablet devices have internal serial busses where turning off ports and stuff behind them matters. Alan -- 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