Hi all! I would like to modify the behaviour of the command "halt" which is been created to shutdown the raspberry system in a safe way. The natural behaviour of the "halt" command is: - to dismount everything (action A) and than - program the raspberry hw to do not use anymore the power (action B)....

I've found a little bit more of information. The time specified in the call doen't have as origin the moment when the call is done but it is relative to the value returned by the clock_gettime system call. A good example (copied from http://pubs.opengroup.org/onlinepubs/9699919799) is the following:...

Dear all, I'm trying to use the pthread_cond_timedwait but this call seems not to be able to suspend the execution and always ends returning ETIMEDOUT. I've created the condition with the default value for attributes (pthread_cond_init (&mbx->cond, NULL)) also why seems to be impossible set a differ...