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From: "Intron" <mag@intron.ac>
To: des@des.no
Date: Mon, 14 Aug 2006 16:02:32 +0800
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Cc: freebsd-hackers@freebsd.org, Sean Bryant <bryants@gmail.com>
Subject: Re: Questions about devices and input.
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Dag-Erling  [iso-8859-1] Smo/rgrav wrote:

> "Intron" <mag@intron.ac> writes:
>> "Dag-Erling Smo/rgrav" <des@des.no> writes:
>> > "Sean Bryant" <bryants@gmail.com> writes:
>> > > I'm writing some cd buring software using burncd as a reference.
>> > > I was wondering if its possible to detect opening and closing of
>> > > the doors.
>> > Unfortunately, no.  The drive may not even have a door.
>> Mr. smo/rgrav loves playing joke very much.
> 
> No.  Unlike you, I know what I'm talking about.
> 
>> But most of CD/DVD drives have a door, though generally speaking,
>> software cannot detect the open/close status of a door directly.
> 
> http://www.plextor.com/english/products/716AL.htm

What I said is "most of". This kind of drive may do harm to your
CD/DVD disc if you fail to operate carefully enough.

> 
>> However, software can command the drive to open/close its door.
> 
> This is not what Sean wants.

I want to tell Sean that he is not worth spending time in finding
how to detect the open/close status of a drive door. If his program
can open/close/lock/unlock the door and detect whether recording medium
(CD/DVD) is present in drive or not and whether the drive is locked
or not, that's enough, just as Nero (www.nero.com) can do.

> 
> DES
> -- 
> Dag-Erling Smo/rgrav - des@des.no

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