Date: Sun, 23 Aug 1998 20:27:57 -0600 (MDT) From: "Kenneth D. Merry" <ken@plutotech.com> To: chuckr@glue.umd.edu (Chuck Robey) Cc: freebsd-current@FreeBSD.ORG Subject: Re: pciconf Message-ID: <199808240227.UAA05491@panzer.plutotech.com> In-Reply-To: <Pine.BSF.4.00.9808231954390.361-100000@picnic.mat.net> from Chuck Robey at "Aug 23, 98 07:58:31 pm"
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Chuck Robey wrote...
> While investigating pci stuff (for an audio driver) I saw a man page for
> pciconf. It says that there's a -l option, so I tried that, as both a
> regular user and root, and both times I got:
>
> picnic:/usr2/chuckr:55 >pciconf -l
> pciconf: ioctl(PCIOCGETCONF): Operation not supported by device
>
> I figured to use the pciconf utility (the source code) to educate myself
> as to what pci functions might work like, so this is unsettling. Does
> anyone know what's going on here? Below, I'm excerpting the part of my
> dmesg that I figure might be relevant:
The problem is that the PCIOCGETCONF ioctl isn't supported in
-current. There's nothing wrong with your machine. I've modified the PCI
code in the CAM tree to support that ioctl again. So 'pciconf -l' now
produces output like:
{panzer:/usr/home/ken:7:0} pciconf -l
ahc1@pci1:5:0: class=0x010000 card=0x00000000 chip=0x82789004 rev=0x00 hdr=0x00
ahc0@pci1:4:0: class=0x010000 card=0x00000000 chip=0x82789004 rev=0x00 hdr=0x00
vga0@pci0:13:0: class=0x030000 card=0x00000000 chip=0x0519102b rev=0x01 hdr=0x00
de1@pci0:12:0: class=0x020000 card=0x00000000 chip=0x00091011 rev=0x12 hdr=0x00
bktr0@pci0:11:0: class=0x040000 card=0x00000000 chip=0x0350109e rev=0x11 hdr=0x00
de0@pci0:10:0: class=0x020000 card=0x00000000 chip=0x00091011 rev=0x11 hdr=0x00
chip2@pci0:9:0: class=0x060400 card=0x00000000 chip=0x00011011 rev=0x02 hdr=0x01
chip1@pci0:1:0: class=0x060100 card=0x00000000 chip=0x70008086 rev=0x01 hdr=0x00
chip0@pci0:0:0: class=0x060000 card=0x00000000 chip=0x12378086 rev=0x02 hdr=0x00
The new version of that ioctl also supports matching against bus,
device, function, device name and unit number.
Ken
--
Kenneth Merry
ken@plutotech.com
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