I've to correct myself. It works if I activate the boot console
(console="vidconsole,comconsole").
If I change the mentioned line to console="vidconsole", neither writing
to /dev/ttyu0 nor reading from /dev/cuau1 works.
It seems that the FreeBSD loader initialize the serial ports in a
different way than the OS does.

- Alex

On 15.08.2018 12:46, Alexander Lochmann wrote:
> Reading from /dev/cuau1 works. Thank you for your help!
> However, I'm pretty sure I tried this device before. Nvm. It works.
> 
> - Alex
> 
> On 13.08.2018 22:49, Eugene Grosbein wrote:
>> 14.08.2018 3:15, Alexander Lochmann wrote:
>>
>>>> You should not rely on defaults and make sure you disable modem control/CD
>>>> either explicitly (using stty(1) etc.) or implicitly by switching to 
>>>> /dev/cuau0
>>>> instead of /dev/ttyu0. Flow control settings should match too, for both 
>>>> sides
>>>> of virtual port.
>>> Thx. I cannot even run 'stty < /dev/ttyu1' to see the current settings.
>>> It simply blocks...
>>
>> Use /dev/ttyu1.init to see defaults and /dev/ttyu1.lock to set/show
>> locked defaults that cannot be changed without disabling a lock first.
>>
>>
> 
> 

-- 
Technische Universität Dortmund
Alexander Lochmann                PGP key: 0xBC3EF6FD
Otto-Hahn-Str. 16                 phone:  +49.231.7556141
D-44227 Dortmund                  fax:    +49.231.7556116
http://ess.cs.tu-dortmund.de/Staff/al

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