linux-kernel - exporting variables across modules

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Message-ID: <005601c7937c$f5416580$142ec70a@dlh.st.com>
Date:	Fri, 11 May 2007 09:02:01 +0530
From:	Bhuvan Kumar MITTAL <bhuvan.mittal@...com>
To:	<linux-kernel@...r.kernel.org>
Cc:	"'Bhuvan Kumar MITTAL'" <bhuvan.mittal@...com>
Subject: exporting variables across modules

I have 2 kernel modules. In one module I have 2 global pointers(of type unsigned char and int respectively). I'd like to use these 2 pointers in the other module. I am adopting the following approach but not really sure whether its right or not:

1. I have exported both the pointers using EXPORT_SYMBOL(sym1) and EXPORT_SYMBOL(sym2)

2. Then in the module in which I want to use these pointers I have declared these 2 pointers as global extern variables as:
	extern unsigned char * sym1;
	extern unsigned int * sym2;

Is this the right way to use these pointers? Kindly guide me.

Regards,

Bhuvan

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