Disabling certain PCI devices

[Rick Stevens]

Mark Knecht wrote:
> Rick Stevens wrote:
> 
>>
>> As far as I know, it's created by the "make modules-install" portion of
>> a kernel build, but I won't swear to it.  I can't speak to gentoo as I
>> don't have a system set up (gee, YAFO for labrat.ssssc.com).  I'll do
>> some snooping later today and see what I can find.
> 
> 
> Rick,
>    I got a response from the Gentoo list. The values are set (in my 
> case) in one of the source code files for the 1394 stack. To change this 
> behaviour under Gentoo I have to modify that file (in this case 
> ohci1394.c) and rebuild the kernel. (Or at least the driver.) The 
> modules.pcimap file is then created by a depmod command at boot time I'm 
> told.
> 
>    It is interesting that on Redhat the modules.pcimap does appear to be 
> static, so I guess I could possibly just edit the file on that machine. 
> I suspect that maybe somewhere in the modules_install step there may be 
> a similar depmod that builds this?

There's a program called "gen-devlist" that gets built during the kernel
build.  It appears to create the file by reading a "pci.ids" file that's
in the /usr/src/linux/drivers/pci directory.  It's run during the
PCI and zorro driver builds to create the devlist.h files.  I suspect
those files are copied during the modules_install.

Most of the gory details about what happens when is spelled out in the
"/usr/src/linux/Documentation/kbuild/makefiles.txt" file.  It may be
a good idea for you to have a read of that.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
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