Mailing List Archive: domU ttyS0 modem access

> I need to acccess a modem on ttyS0 from a domU, I cannot seem
> to find any information on this, maybe I am searching for the
> wrong term.
>
> Only one specific dom shall be allowed to access ttyS0.
>
> Anyway, can anyone give me a pointer ?

unstable makes this easier. On 2.0 you can do this so long as you don't
use any com port in Xen (no comX= line on the xen command line). Just
compile the 8250 uart drvier into your xenU kernel, and give the domain
IO privilege by giving it a fake pci device line.

Ian

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