Homework3 : time(kernel)

[CheeseMite]

Desription

Kernel module with sysfs interface. It shows relation time in maximum possible resolution passed since previous read of it. And shows absolute time of previous reading.

Module's mode can be changed by writing 0 - show relation time, and everything else - show absolute time.

Example

cd /sys/class/Tim/
cat myTim 
2.74955
echo "1" > myTim
cat myTim
38.36385
cat myTim; sleep 10 && cat myTim
196.77832
207.63388

Here is some problem, hrtimer callback return too early after forwarding it.