Concept question: what is PDM driver?

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Oscarh
Posts: 4
Joined: 7. Mar 2023, 07:53

Concept question: what is PDM driver?

Post by Oscarh »

I can understand PDM device is for device emulation. What's exactly PDM drivers (registered with VBoxDriversRegister)?

Thanks
-Oscar
fth0
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Re: Concept question: what is PDM driver?

Post by fth0 »

VirtualBox uses (PDM) devices to provide virtual hardware to the guest OS, and (PDM) drivers to access the physical hardware on the host. For example, the guest OS uses its keyboard driver to access the virtual keyboard provided by VirtualBox, and VirtualBox uses its keyboard driver to access the physical keyboard of the PC.
Oscarh
Posts: 4
Joined: 7. Mar 2023, 07:53

Re: Concept question: what is PDM driver?

Post by Oscarh »

It's clear to me now. Many thanks, fth0.

Thanks
-Oscar
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