Detecting media insertion

Adam J. Richter (adam@yggdrasil.com)
Sun, 29 Mar 1998 09:00:26 -0800

I am trying to figure out how to detect insertion of media
(such as a CDROM, floppy or zip cartridge) without noticeable physical
hardware activity. For example, I would like to bring up a CDROM icon
as soon as the user inserts a CDROM without the user having to do
anything else to bring this to the computer's attention, just like
under Windows.

Simply trying to read a byte every second from /dev/fd0 or the
CDROM device is unacceptable, because that causes the floppy to
spin up and make a lot of noise and causes the cdrom drive to retract
its tray.

I don't believe that there is currently any ioctl defined
or this purpose or even a defined way for kernel code to get this
information from a device driver, but I'd like to know if there is.

Any pointers would be appreciated.

-- 
Adam J. Richter     __     ______________   4880 Stevens Creek Blvd, Suite 205
adam@yggdrasil.com     \ /                  San Jose, California 95129-1034
+1 408 261-6630         | g g d r a s i l   United States of America
fax +1 408 261-6631      "Free Software For The Rest Of Us."


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