Hi all I have a question regarding pthread_mutex: Currently I am utilizing the pthread library. Everything seems to work fine with the exception of timeouts when attempting to set the CLOCK_REALTIME to a different time. This will cause the timeout to trigger later/earlier than expected depending on if you set the time forwards of backwards, changing the time is done by settimeofday(...). The first attempt of a solution was to use a different clock (CLOCK_MONOTONIC), which works fine when using conditional attributes (pthread_condattr_setclock in combination with pthread_cond_init) but unfortunately there does not seem to be a corresponding pthread_mutex_setclock(MISSING) for pthread_mutex_init. Is there an good alternative for pthread or can the pthread library somehow be utilized for this purpose? 4.19.79-rt28-g5baf382c8f #1 SMP PREEMPT RT Tue Mar 10 07:30:26 UTC 2020 armv7l armv7l armv7l GNU/Linux Any help is highly appreciated. Thanx Andy