Hello Hannes,

> ...
> I compiled the rt_serial_uprog, but it can't open rtser0:
> 
> # ./rt_serial_uprog
> rt_serial_uprog: timer started
> rt_serial_uprog: can't open rtser0 (write)
> rt_serial_uprog: stop timer
> 
> # lsmod
> Module                  Size  Used by
> xeno_16550A            12392  0
> xeno_rtdm              23460  1 xeno_16550A
> xeno_native           114384  0
> xeno_nucleus           82696  3 xeno_16550A,xeno_rtdm,xeno_native
> xeno_hal               23616  4
> xeno_16550A,xeno_rtdm,xeno_native,xeno_nucleus
> [...]
> 
> rtser[X] should be available as soon as xeno_16550A is loaded, right ?

Only when you provided the correct module parameters... Isn't that
documented somewhere? Don't remember right now, but if not, this
requires fixing. Check what's available on your box via /proc/xenomai/rtdm.

> 
>> Any frequent problems falling asleep? ;)
> 
> 
> Usually not - we have national holiday today, so I was doing my stuff as
> long
> as I wanted :-)

Yea, I can understand. The only problem is the code one produces between
about 3 and 5 am - mine is generally just "interesting". Later it gets
better again. :)

Jan