disable optical drive eject button

[David Flickinger]

I have a customer requirement to disable the eject button on an optical drive when it is mounted and enable it when it has been dismounted. The SCSI command I need to send is the Prevent/Allow Medium Removal (1E), toggling the the prevent bit to lock or unlock. I am trying to determine the best way to do this, possibly redirect the Mount/Dismount commands to an executable that will do the normal mount/dismount as well as send the SCSI command. Has anyone done this? Or do you have any suggestions on the best way to implement?