How to isolate Hardware for one particular process

Hi, God

I'm doing some experiment on Linux to isolate an hardware for one particular process to use,
and at the same time preventing other process to use it.
As far as my understanding, cgroup could archive cpu/mem/sched control at process unit,
then how to provide such control on some other hardware like serial port/nic ?
Is there any mechanism in linux enables me to do so?

thanks



bill
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