DoC Error

[Paulo Richards]

ioctl(MEMGETINFO): Inappropriate ioctl for device
What does this means?, The DoC was working ok, (i used to be able to erase, 
format, burn, etc), but after i change the kernel (for the Cwlinux developer 
one), it's stop working, i can't erase (seems ok, but don't erase), format 
(give me the mentioned error), and not burn. I change back the kernel to my 
old one, and the same error happens.

So, what happend? I'm forgetting somethig (i don't think so, i'm doing the 
same than before), or the DoC blows up?

Thanx
Paulo Richards