From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Mon, 5 Sep 2011 20:01:58 -0700
Subject: Parallel IO port conflict (driver problem)
In-Reply-To: <CAHRL4KV6P-OVKvghLCXA05Ym5gG99jy36hu0hYWdyNR7_wyFLg@mail.gmail.com>
References: <CAHRL4KV6P-OVKvghLCXA05Ym5gG99jy36hu0hYWdyNR7_wyFLg@mail.gmail.com>
Message-ID: <20110906030158.GA29288@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Tue, Sep 06, 2011 at 08:58:34AM +0800, Shenli Zhu wrote:
> Hi all,
> 
> I am reading "Linux device driver 3rd". I try to insmod the "short"
> example(a example use parallel port).
> 
> But the port 0x378 is allocated to parport. And parport is used by
> ppdev, parport_pc and lp.
> 
> Shall I rmmod all these 4 module to insmod "short"?

Yes.