I've got a routine that needs to delay for X microseconds, this is a must. The command after schedule_timeout must has to wait for the HW to complete a task that takes X microseconds.
I would think that one way to do this is with a simple schedule_timeout. But in the example below, the time that passes from run1() to dontrun() is far less than 3.2 msecs. Infact, sometimes its ~ 800 micros according the a analyzer looking at points triggered in run1() and donrun(). Could this be a configuration problem with the timer/interrupt that generates the jiffies? run1(); delaytime = 3280; set_current_state(TASK_UNINTERRUPTIBLE) ; schedule_timeout(usecs_to_jiffies(delaytime)); //1HZ = 1 second 1/1000 second = 1 milli dontrun(); _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
