[erlang-questions] ioctl support?

Richard A. O'Keefe <>
Wed Jun 4 02:44:42 CEST 2008


On 1 Jun 2008, at 1:00 pm, tsuraan wrote:
> I'm trying to determine if my cd-rom drive tray is open.  I think the
> only way to do that in Linux is to use the CDROM_DRIVE_STATUS request
> (an ioctl).

CD-ROM trays don't open and close that fast, so presumably checking
once a second or so would be ample.  What I'd do would be to write a
separate C program as a C node and have it send {cdrom,opened} and
{cdrom,closed} messages.




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