> + * uart_tty_find - find the associated TTY device for the UART target > + * device > + * @drv: the low level UART driver > + * @dev: the parent physical device for the TTY devices > + * @line: the line number of the UART target device > + * Our top level abstraction is struct tty and struct tty_port. There is nothing requiring a serial tty is using the uart helper layer, nor should there be, so your code needs to support devices not using the uart layer. Otherwise it looks quite reasonable. our 3.7 tty layer has sysfs nodes on the tty which may also help Alan -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html