Subject: Re: Multiple values for locators
To: Charles M. Hannum <mycroft@gnu.ai.mit.edu>
From: Brett Lymn <blymn@awadi.com.au>
List: tech-kern
Date: 03/26/1997 12:38:57
According to Charles M. Hannum:
>
>device isa {[port*4 = -1,-1,-1,-1], [size*4 = 0,0,0,0],
> [iomem*4 = -1,-1,-1,-1], [iosiz*4 = 0,0,0,0],
> [irq*2 = -1,-1], [drq*2 = -1,-1]}
>
>and cf_locnames gets `locator[N]' iff there's a `*N' in there.
>
Oooh goody, locators (some of you may know why I am interested ;-)
One thing that would be good would be to get away from arbitrary
offsets into the locator array. Could the locator array be overlayed
with a union structure that is dependent on the bus that the driver is
being used on? This way we could document the meaning of the locators
in a consistent manner whilst maintaining compatiability with the old
driver code - if this was done and there was some indication
of the bus type the device is attached to then the locators array
would be useful for more than the autoconfig.
--
Brett Lymn, Computer Systems Administrator, AWA Defence Industries
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