Re: [RFC PATCH 1/3] UART: Add UART subsystem as a bus.

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> > We just need a set of type names for the sysfs node I think "bluetooth", "ups",
> > "loconet", "serial", "modem", "cir" etc...
> 
> Is it a good idea to introduce uart_device driver in the kernel to fill a new 'ldisc' member in the uart_device or to load ldisc by default for the corresponding tty_port?

No but it can provide information to help user space. In many cases the
decision isn't about a line discipline but about automatically setting
permissions or linking ports to the right driver.

The hints need to be generic - they can come from open firmware, from pci
identifiers, from ACPI and so on.

> Shall we change the uart_bus to the tty_bus, then introduce tty_host / tty_target for the bus?

We have a tty class - is that not sufficient ?

Alan
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