[Xenomai] Sensoray 626 analogy driver
wojciech.domski at gmail.com
Tue Mar 25 11:26:40 CET 2014
W dniu 24.03.2014 13:19, Gilles Chanteperdrix pisze:
> The solution which would be acceptable is not to have busy waits, except
> for very short durations. But for instance transferring a byte on I2C
> takes around 20us at 400 kHz, a 20us masking section is unacceptable.
> rtdm_task_busy_sleep, as the name suggests is a busy wait loop, so, no,
> it is not acceptable either.
> Use a thread or a timer to reschedule while you wait for the end of the
> transfer, instead of busy waiting.
As you mentioned before the driver has few places like this:
Would a solution of creating a separate task for this purpose be ok?
In the place of those loops a piece of code responsible for creating and
joining task would be put instead:
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