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Serious Question About IRQs and I/O Addys

by WikiTikiLakaBaka May 20, 2012 2:44AM PDT

Ok.

I plug in a USB device into USB Port. Data is transferred through to CPU, then to HD. Is the data originally sent through an IRQ?(USB to CPU) Then through I/O ? (CPU TO HD)?

Thx for the clarification ahead of time.

Discussion is locked

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Serious? Why didn't you add DMA to the question?

by r. proffitt Forum moderator May 20, 2012 2:54AM PDT

http://www.google.com/patents/US6266715

The bulk of the data movement is via DMA.
Bob

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