Re: [rtl] semaphores in rtl 2.3

[Anders Gnistrup <agn@city.dk>]

Peter S Groessinger wrote:

> hi all,
> 
> i'm a newbie to programming modules for the rt linux kernel. i have
> minirtl 2.2.14- rtl v2.3 installed on a mops pc104.
> 
> the problem i have is that i can not insmod a module which makes use of
> the sem_init, sem_wait and sem_post functions. these symbols appear to
> be unresolved when loading the module.

The funktions is part of a module, and the module is not installed by 
standard. I think the module in named rtl_posixio.o. insert the the 
module and you should be up and running.

If you can use a mutex, use the module mutex.o
if you insist using semaphores I "think" that you should look in the

or you could shift to RTLinux 3.1 ;-)

Anders Gnistrup