Does a USB Keyboard Use DMA?

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karim
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Joined: Mon Jun 23, 2025 8:03 pm

Does a USB Keyboard Use DMA?

Post by karim »

Does a USB keyboard use DMA, meaning it sends the data from the USB controller directly to RAM?
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nullplan
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Joined: Wed Aug 30, 2017 8:24 am

Re: Does a USB Keyboard Use DMA?

Post by nullplan »

No, it does not. Instead, it sends data to the host controller, which places it in RAM directly.
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