CentOS - Jul 2010 - kernel mod compilation frustration

I want to add a sleep() to a module. It tells me it can't find
<time.h>;
if I tell it "/usr/include/time.h", it gives me a ton of errors (I
*have*
put the #include just above where I call sleep, not up at the top).

Any clues as to what I'm doing wrong? With kernel
/vmlinuz-2.6.18-194.3.1.el5, I just added the line
extern unsigned int sleep( unsigned int seconds );
and everything was wonderful; with the current kernel, it complains sleep
is undefined.

??
       mark

m.roth at 5-cent.us wrote:
> I want to add a sleep() to a module. It tells me it can't find
<time.h>;
> if I tell it "/usr/include/time.h", it gives me a ton of errors
(I *have*
> put the #include just above where I call sleep, not up at the top).
> 
> Any clues as to what I'm doing wrong? With kernel
> /vmlinuz-2.6.18-194.3.1.el5, I just added the line
> extern unsigned int sleep( unsigned int seconds );
> and everything was wonderful; with the current kernel, it complains sleep
> is undefined.
The kernel doesn't use include files from /usr/include - it uses its own 
from its own include directory

You probably want to use something like ssleep(), msleep() or mdelay() - 
see include/linux/delay.h and kernel/timer.c

James Pearson