Re: [Xenomai-help] RTDM & serial port

[Hannes Mayer <h.mayer@domain.hid>]

Hi Jan!

Jan Kiszka wrote:
[...]
> Actually, there is already some howto, but I guess also enough room for
> improvements: http://www.rts.uni-hannover.de/mitarbeiter/kiszka/rtaddon/

Cool! Thanks!

> Nope, RTDM devices are not being mapped into the Linux file system. They
> use a separate namespace where you can find serial devices as plain
> "rtser[X]".

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 ?

> Any frequent problems falling asleep? ;)

Usually not - we have national holiday today, so I was doing my stuff as long
as I wanted :-)

Thanks and best regards,
Hannes.