#include #include #include #include #include #include "common.h" static int output; void intr_handler(int irq, void *id, struct pt_regs *regs) { outb(output, LPT_PORT); output = !output; } int init_module(void) { request_irq(LPT_IRQ, intr_handler, SA_INTERRUPT, "lpt", NULL); outb_p(0x10, LPT_PORT + 2); output = 0; return 0; } void cleanup_module(void) { free_irq(LPT_IRQ, NULL); }