Using the hrtimer callback function, is it possible to give function parameters?

Question

So if I use like:

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enum hrtimer_restart my_hrtimer_callback( struct hrtimer *timer )

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hr_timer.function = &my_hrtimer_callback;
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hrtimer_start(hr_timer,ktime,HRTIMER_MODE_REL);
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Is it possible to pass any parameters to the callback function during the start of the timer? I google a little bit but didn't find a clue. How to use that?

Thanks;>

Answer 1

Embed the struct hrtimer in a structure of your creation that has any additional information you may need. Then use container_of() to get the pointer to the containing structure from the timer argument.