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From: Walter Hurry <walterhurry@gmail.com>
Subject: Kernel Modules Documentation?
Date: Tue, 30 Apr 2013 13:39:10 +0000 (UTC)
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FreeBSD 9.1 on amd64.

I have a list of about 220 kernel modules and would like to find out what 
they do, or are for (none has a man page). I suspect that many of them 
are drivers for particular devices.

Is there any resource or documentation available?

Thanks.

P.S. Here are the first few:
ahc_eisa
ahc_isa
ahc_pci
alias_cuseeme