Re: 2.4.12-ac3 floppy module requires 0x3f0-0x3f1 ioports

From: Maciej Zenczykowski (maze@druid.if.uj.edu.pl)
Date: Mon Nov 05 2001 - 06:18:12 EST


On Mon, 5 Nov 2001, Alan Cox wrote:
> > Well here you have it...
> > W98SE reports the FDC at 0x3f0..0x3f5 and 0x3f7
>
> Its absolutely correct. 0x3f6 isnt floppy. That I suspect is what
> is causing the problem because it tries to grab 0x3f6 in Linux

No Linux doesn't grab 0x3f6 - what it grabs is 0x3f0-0x3f5 and 0x3f7 -
exactly as reported by w98 - however 0x3f0-0x3f1 have already been
reserved by the pnpbios code, since they are listed in the bios as
motherboard resources, while 0x3f2-03xf5 and 03xf7 are listed as floppy
-> the problem is that the floppy reserves ports that it does not need (in
fact it could skip reserving 0x3f3 also...)

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This archive was generated by hypermail 2b29 : Wed Nov 07 2001 - 21:00:25 EST