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From: Artem Ignatiev <zazubrik@mail.ru>
Date: Thu, 8 Jun 2006 18:27:21 +0400
To: <hongz@promisechina.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: help:Makefile template for device drivers with multiple
	directories
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On 08.06.2006, at 14:13, <hongz@promisechina.com>  
<hongz@promisechina.com> wrote:

> Need your helps again! The following is a Makefile template for a  
> device
> driver in FreeBSD. But when my driver source codes locate in multiple
> directories (such as under osd/, engine/, and cam/), how to write the
> Makefile? I have tried but still can not get through this, please  
> give me a
> help!

Are those sources of a single driver, or just subdrivers? FWIW, look  
at bsd.subdir.mk
Or you can try writing
SRCS+= osd/something.c engine/something_else.c cam/whatever_that_does.c