You can't

Forum: The Linux Kernel Hackers' Guide
Re: calling interupts from linux (John J. Binder)
Keywords: interrupts callable from C.
Date: Thu, 18 Sep 1997 15:09:43 GMT
From: Michael K. Johnson <johnsonm@redhat.com>

If you had read the KHG, you would have discovered that you can only access interrupts from kernel code, not from user-level code. Please read what has already been written before you ask questions.