On May 9, 2013, at 12:31 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: > On Wednesday 08 May 2013, Greg KH wrote: >>> just mention there is not hardware reason to not use the generic ttySx >>> in place of ttyAS as we have only one IP that handle serial on this >>> family of SoC >>> >>> personally I'll switch to ttySx >> >> Great, then you can use the same major/minor range as well, so there's >> no more objection from me about this :) > > Does that work these days when you have kernel with multiple built-in > uart drivers? not for very long time and no this family > > I think it would be good if all uarts were using the same name space > and major/minor numbers, but I think the mess we currently have is > the result of the tty_register_driver() interface reserving the > device number range at driver load time, independent of the presence > of devices. I would assume that normal distro kernels always ship > with an 8250 driver built-in to allow using that as the console, > and if I read the code correctly, that currently prevents another > uart driver from registering the same major/minor numbers. so we need to fix this > > Arnd > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
