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Does a USB Keyboard Use DMA?

https://forum.osdev.org/viewtopic.php?t=57847

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Does a USB Keyboard Use DMA?

Posted: Tue Jul 08, 2025 11:07 pm
by karim
Does a USB keyboard use DMA, meaning it sends the data from the USB controller directly to RAM?

Re: Does a USB Keyboard Use DMA?

Posted: Wed Jul 09, 2025 8:40 am
by nullplan
No, it does not. Instead, it sends data to the host controller, which places it in RAM directly.
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