busmaster/latency for video

[Michel Lanners]

On   6 Oct, this message from Ryan Nielsen echoed through cyberspace:
> 
> PCI_COMMAND_MASTER is not enabled and latency = 0 for the ultimate rez video card, and pci_write_config_*
> do not change them. latency = 32 and mastering is enabled for all the other cards in the machine,
> 
> should they be enabled ?

That probably means the card doesn't support them.

Normal graphic cards have no need for mastership. Only those with video
inputs need it, in order to transfer video data into the framebuffer
without CPU help.

Michel

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