new fdc(4) and new fdcontrol(8) behavior (5.3-BETA5)

M. Warner Losh imp at
Sun Sep 26 08:23:36 PDT 2004

In message: <20040926143209.44197.qmail at>
            Rostislav Krasny <rosti_bsd at> writes:
: --- "M. Warner Losh" <imp at> wrote:
: > In message: <20040921122354.73480.qmail at>
: >             Rostislav Krasny <rosti_bsd at> writes:
: > : Why the 3F7h port isn't used by new fdc(4) on my system? Is it a
: > : hardware detection bug?
: > 
: > It is a minor, hardware detection bug.  Your bios doesn't list it as a
: > resource, but should.  We do use it, but we don't allocate it with the
: > bus system, which is why it doesn't appear in dmesg.  A
: > mostly-harmless cosmetic issue.
: How the 0x3f7 port could be used without allocation? My BIOS doesn't list
: 0x3f0-0x3f1 ports as resurces of the PNP0700 device too, but fdc(4) use them
: anyhow:
: PNP0700: adding dma mask 0x4
: PNP0700: adding io range 0x3f2-0x3f5, size=0x4, align=0
: PNP0700: adding irq mask 0x40
: pnpbios: handle 12 device ID PNP0700 (0007d041)
: # devinfo -uv | grep -e "0x37[0-5,7]" -e "0x3f[0-5,7]"
:     0x300-0x375 (root0)
:     0x377 (root0)
:     0x3f0-0x3f5 (fdc0)
:     0x3f7 (root0)

Interesting....  Can you send me a full verbose boot?  That is, the
dmesg from boot -v?


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