On Wed, May 08, 2013 at 06:31:48PM +0200, Arnd Bergmann 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? It "should", as the major/minor registration should only happen when the hardware is found, but I haven't tested it out, so I can't say for sure. > 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. We can always fix this if needed :) thanks, greg k-h -- 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
