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From: liyu <liyu@ccoss.com.cn>
To: LKML <linux-kernel@vger.kernel.org>
Subject: [Question] How access standard PC io port?
Date: Tue, 09 May 2006 15:24:05 +0800	[thread overview]
Message-ID: <44604395.9070909@ccoss.com.cn> (raw)

Hello:

    I have one question about standard PC(i386) resource (io port).
   
    I found we register these resource here:
    
        http://lxr.linux.no/source/arch/i386/kernel/setup.c#L1185
   
    I want to read/write some data from PS/2 keyboard controller buffer
(IOW, from io port 0x60), and I guest that the buffer may corrupt in SMP
envionment if we access them without something like lock protect,
but I can not find any information or code related.
   
    Which great guru would like help me a little bit?
   
    Thanks in advanced.

-liyu

                 reply	other threads:[~2006-05-09  7:23 UTC|newest]

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