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by serendipitous
1737 days ago
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This polling is not done by the CPU, this is a common misconception. In a typical modern system the only polling that happens with USB is done by the USB host controller and only when there is actual data the host controller generates interrupts for the CPU to process it. Obviously, when you configure the mouse at higher frequency you will get more interrupts and hence higher CPU usage but that has nothing to do with the polling. |
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