Messages in this thread | | | Date | Sat, 3 Nov 2001 01:00:28 +0100 (CET) | From | Maciej Zenczykowski <> | Subject | 2.4.12-ac3 floppy module requires 0x3f0-0x3f1 ioports |
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Hi All,
Is there any reason why the floppy module requires the ioport range 0x3f0-0x3f1 in order to load? On my computer /proc/ioports reports this range as used by PnPBIOS PNP0c02, thus the floppy module cannot reserve the range 0x3f0-0x3f5 and refuses to load.
I have taken a quick look at the port specification of the FDC and have found no readon for any access to the 0x3f0 port, I have found a reason for accessing the 0x3f1 port - but only on PS/2's. This ain't a PS/2 so that is irrelevant. Furthermore analysis of the code fails to find any place where these two ports would actually be used...
Deciding to take a try at it I changed the floppy module to reserve only the 0x3f2-0x3f5 and 0x3f7 ports, recompiled and the module now loads. I have not done any tests on it, however copying a diskette via mcopy, mdir and plain old mount worked fine.
All in all I would say that at least in my case there is no reason for floppy to reserve these two ports - I don't know about other machines (especially PS/2's) - but I cannot see any use of them in the source code any way.
Questions, Ideas?
Maciej Zenczykowski
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