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Date:   Tue, 5 Jul 2022 11:52:10 -0700
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To:     Sathyanarayanan Kuppuswamy 
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On 7/5/22 11:45, Sathyanarayanan Kuppuswamy wrote:
> Yes, there are many ways to design this. But I still think IOCTL is a better fit
> for the request/response kind of use case.

Are there any other similar ABIs in the kernel?  What kind of mechanism
do they use?