Eric W. Biederman ebiederman at lnxi.com
Thu Jun 12 15:18:01 CEST 2003

"Brian G. Rhodes" <bgr at gw.linespeed.net> writes:

> Ron,
> I was always under the impression that the BIOS should enable a device
> (bus master) always.  And slaves would not be able to be set. 

Nope.  The BIOS only needs to do this for devices needed to boot.

>  Some
> devices set a capability which you can read this from to know whether the
> device should be a master or not.
> Why, or where, should the OS do it?  Driver?

Yes, in the driver.  Under linux this is the pci_set_master call.


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