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My keyboard switch for ejecting the CDROM does not work though it displays an eject button on the screen. I need to make it work. I know ejecting a cdrom using system call is as simple as 

ioctl(cdromfd,CDROMEJECT,0)

But I don't know how to connect the an executable that contains the above system call and the event of pressing the eject key? Or shall I rely on kernel level? If then how?

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It might try to call eject -- have you installed that? (Does eject /dev/cdrom in a terminal work?) – sr_ Jan 15 at 8:35
I don't have any problem with ejecting the cdrom using eject command. However eject key on my keyboard does not work. – PaulDC Jan 15 at 10:31
I was just trying to find out what could be the reason for your eject key causing the eject button display on screen while failing to actually eject the cdrom... What's your desktop environment? The cdrom isn't mounted, right? – sr_ Jan 15 at 11:18
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So GNOME? I'm not a user but a lot of DEs and window managers allow you to create custom shortcuts. If there is a GUI interface to set them in, it will probably pick up the correct keycode for you, then you just link that to the eject command. – goldilocks Jan 15 at 11:47
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Yeah! It did work. I was wondering how the things where working internally :) – PaulDC Jan 15 at 11:57
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