Re: Signalling from kernel

H. Peter Anvin (hpa@transmeta.com)
Mon, 14 Apr 1997 12:50:32 -0700 (PDT)

>
> is there a simple way to call an user-level funktion from kernel space
> or at least let the process notify that a driver completed a task.
>

I think this is a job for SIGIO: use SIGIO to notify the process
something just happened and have the process read from a character
device to find out just exactly what the SIGIO was about.

That is, of course, assuming the process can't simply select() on a
suitable device until something happens.

-hpa