Hey, I put processes to sleep but they don't wake up

interruptible_sleep_on(&(the_element->wq));

Instead do...

wait_event_interruptible(the_element->wq, the_element->state == WAKE_LIMBO);

...where the_element->state == WAKE_LIMBO is a condition set in the ISR.

Seems to run indefinitely. So, the moral of the story is:

If you're going to sleep and the even that can wake you could happen in a very short period of time, have some variable get set in your ISR and use the wait_event_interruptible() version of the function.

How to assign ioctl numbers:

Code to print out stuff whether in the kernel or a user space program

#ifdef __KERNEL__
  #include <linux/kernel.h>
  #define KU_PRINT(fmt, args...) printk(KERN_WARNING "" fmt, ## args)
#else
  #define KU_PRINT(fmt, args...) printf("" fmt, ## args)
#endif

-- MattWalsh - 27 Mar 2002