On Fri, Mar 3, 2017 at 8:54 AM, Jan Stary <h...@stare.cz> wrote:

> On Mar 03 08:46:11, h...@stare.cz wrote:
> > This is current/amd64 (dmesg below). I got me this
> > https://www.alza.cz/EN/axago-pcea-s2-d277216.htm
> > to have two extra serial ports to connect to my ALIXes.
> > It shows up in dmesg as
> >
> >   puc0 at pci2 dev 0 function 0 "NetMos Nm9922" rev 0x00: ports: 1 com
> >   com4 at puc0 port 0 apic 2 int 16: st16650, 32 byte fifo
> >   puc1 at pci2 dev 0 function 1 "NetMos Nm9922" rev 0x00: ports: 1 com
> >   com5 at puc1 port 0 apic 2 int 17: st16650, 32 byte fifo
>
> Hm, puc(4) says
>
>   The current design of this driver keeps any com ports on these
>   cards from easily being used as console.  Of course, because boards with
>   those are PCI boards, they also suffer from dynamic address
>   assignment, which also means that they can't easily be used as console.
>
> What do people use as a serial port expansion then
> to connect to the ALIX serial console?
>
>         Jan
>
>
I recently bought a cheap USB com port adapter which works fine.
It shows up as ucom0 in dmesg, and uses the /dev/ttyU0 device.

I ordered it here https://www.apu-board.de/produkte/digitus-da-70156.html
in case you're interested.

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