L4Linux and serial port access from other tasks

Adam Lackorzynski adam at os.inf.tu-dresden.de
Wed Jan 26 18:19:12 CET 2005


On Wed Jan 26, 2005 at 12:00:31 -0500, Julian Grizzard wrote:
> I'm running L4Linux on the Fiasco V2 microkernel on a Pentium IV.  I am
> also running other L4 applications beside the L4Linux kernel.  I would
> like to be able to print debug messages from those applications to the
> serial port.  Messages print fine until L4Linux boots up.  As best as I
> can determine, the problem is that L4Linux gets control of the serial
> port, and so no other tasks can use it.  There may be a way to get this
> working using the L4Env setup; however, I am trying to keep a very
> minimal setup and so do not want to use L4Env.  Can anyone provide some
> pointers on how to best go about restricting L4Linux's access to the
> serial port?

Just do not configure it in L4Linux?

Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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