Hi. I`m sorry if this isn`t the right place to post my question, but first I tried posting it on forum.kernelnewbies.org and nobody answered. Here`s my question: I have a Gembird kb-9140l keyboard with some multimedia keys which are not working on linux. I thought about writing my own driver for it, so as a start, I wrote a small module, which registers an interrupt handler on irq 1 with the IRQF_SHARED flag. In the handler function I put a simple printk with the scancode read from the keyboard. The problem is, that the handler never gets executed. I searched on google, and found that because the native driver doesn`t share its interrupt with another modules, before I call request_irq I have to free the original interrupt handler from the native driver. This would make my computer practically unusable until I reboot, but at least I would see, it works, but it doesn`t. The original driver works fine after I insert my module, and the interrupt handler still doesn`t get called. The weird thing is, when I remove my module, my handler executes ones, and the scancode is 0xFE. The code is the following: #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/interrupt.h> #include <asm/io.h> MODULE_LICENSE("Dual BSD/GPL"); static int gembirdkb_init(void); static void gembirdkb_exit(void); irq_handler_t irq_handler (int irq, void *dev_id, struct pt_regs *regs) { static unsigned char scancode; scancode = inb (0x60); printk("gembirdkb: irq handled... scancode: %d\n",scancode); return (irq_handler_t) IRQ_HANDLED; } static int gembirdkb_init(void) { int ret; /* free original interrupt handler */ // free_irq(1, NULL); ret = request_irq (1, (irq_handler_t) irq_handler, IRQF_SHARED, "gembirdkb", (void *)&irq_handler); printk("gembirdkb: request_irq result: %d\n", ret); return ret; } static void gembirdkb_exit(void) { free_irq(1, (void *)&irq_handler); } module_init(gembirdkb_init); module_exit(gembirdkb_exit); Is there any way I can remove the native driver, or I need to recompile the kernel without it, and insert mine? P.s.: Why every topic on the forum is full with questions about mac, iphone, samsung galaxy etc.?