[BRLTTY] BRLTTY in GRUB2

[Dave Mielke]

[quoted lines by Vladimir 'φ-coder/phcoder' Serbinenko on 2012/04/04 at 20:10 +0200]

>Is it known that the port is on PCI? On yeeloong few devices internal to
>CPU use alternate base address.

Unfortunately, I'm really only familiar with the x86 architecture (and, way 
back, IBM mainframes). The ports are used for 8250 UART control when the system 
doesn't provide its own way of doing something. We'd be passing in the port 
number as fetched from the serial device, with the appropiate offset (for MCR, 
MSR, etc) added to it.

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