struct device changes

David Schwartz (
Mon, 22 Jul 1996 16:22:08 -0400 (EDT)

One of the first things they teach programmers is that no matter
what code you write, you can't hurt the hardware. However, if I run the
following line of code while the plastic cover is closed on my computer:

void main(void) { ioctl(open("/dev/cdrom",0),0x5309,0); }

which causes my CDROM drive to eject, which is physically
impossible when the case slider is over it. The kernel reports the

hdb : tray open or drive not ready
hdb : tray open or drive not ready
hdb: packet command error: status=0x51
hdb: packet command error: error=0x40
hdb: code: 0x70 key: 0x04 asc: 0xb6 ascq: 0x00

Not exactly the most logical way to report this error, is it?