James> On Wed, 25 Mar 1998, David Woodhouse wrote:
>> Is it possible for a user-space program to receive notification
>> when the eject button is pressed on a CD drive?
>>
>> It would be useful for automountd to automatically unmount and
>> eject CDs when the eject button is pressed.
James> With IDE CDs, anyway, it isn't possible for us to do this --
James> the drive doesn't tell us. We can have the drive be locked or
James> unlocked, but in unlocked position, it ejects before telling
James> us anything, and in locked position, it doesn't tell us when
James> the button is pressed.
Even if it told us afterwards, that should be ok for a readonly FS,
since a readonly FS never has to write anything back. In other words,
the umount should just be a matter of cleaning up in-memory state,
which can be done before or after the device goes away.
ZIP drives would be another matter (if mounted read/write).
paul
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