AT91sam9260 地址分配;buzzer管脚分配;将模块编译进内核P58页

linux2.6.22->include->asm-arm->arch-at91/AT91sam9260.h

 

System Coontroller Mapping

Peripheral Mapping

(Memories)

USART & PIO... Address

linux2.6.22->include->asm-arm->arch-at91/Board-sam9260ek.c

 

static void __init ek_board_init(void)

    /* BUZZER */
    at91_add_device_bzr(&ek_bzr_data);

 

static struct at91_bzr_data __initdata ek_bzr_data = {
        .bzr_pin = AT91_PIN_PA29,
};

 

 

出现错误：

open PIO device error! -1

解决办法：

mknod /dev/mygpio c 230 0

(#define MY_PIO_MAJOR 230)

 

#chomd 777 a.out