Messages in this thread | | | Date | Thu, 3 Jun 1999 08:52:54 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: 2.3 wish: integrate pcmcia into mainstream kernel |
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On Thu, 3 Jun 1999, Alan Cox wrote: > > Oh, and how do they install on the Sony VAIO, for example? > > Hint: they don't. And PnP isn't the issue, never has been. > > Some of it is. The hard questions being > > "What irq is really free" > "What dma is really free" > "Give me some physical address space that isnt used" > > 1 & 2 you can kind of work around. #3 is a pain. Its also one that needs > to be addressed for the 3D work (AGP GART) and for some I2O devices.
I agree that #2 and #3 is needed, although I disagree about it being a major pain. It's just that nobody ever wrote anything I found acceptable (all the patches I ever saw thought they should re-create the broken MS documentation about PnP).
#1 should be a non-issue these days, and in fact works already (and ISA stuff should just use exclusive irq's, and then request_irq() will give you the information - and if you are sane and don't need exclusive interrupts the whole issue is moot anyway).
Linus
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