Date: Mon, 13 Jan 2003 19:50:22 -0600 From: Fox <foxbsd@gristle.to> To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: freebsd-newbies@FreeBSD.ORG Subject: Re: detecting open cd drive Message-ID: <5.0.2.1.0.20030113194731.026c8690@pop-server.austin.rr.com> In-Reply-To: <20030113234819.GA3695@gothmog.gr> References: <5.0.2.1.0.20030113091738.02802130@pop-server.austin.rr.com> <20030110031616.359a7dcc.one-@madridwireless.net> <5.0.2.1.0.20030113091738.02802130@pop-server.austin.rr.com>
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At 01:48 AM 1/14/03 +0200, Giorgos Keramidas wrote:
>On 2003-01-13 09:20, foxbsd@gristle.to (Fox) wrote:
> > Is there a way to detect that the cdrom drive has been closed from
> > userland. I want to launch a script triggered by the cdrom drive
> > tray closing.
> >
> > I am using FreeBSD 4.7
>
>You could probably poll using ioctl(fd, CDIOREADTOCHEADER, ...) but
>this is something I haven't tested :-/
Thanks that worked out very well, and here is the code:
int fd = 0;
fd = open("/dev/acd0c", O_RDONLY);
while(1)
{
success = ioctl(fd, CDIOREADTOCHEADER, &ith);
if (success != -1)
{
close(fd);
execl("/home/user/test.py", 0);
}
else
{
close (fd);
sleep(2); // try again.
fd = open("/dev/acd0c", O_RDONLY);
}
}
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