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他的低电平是0电位
代码如下
static volatile int ev_press = 0;
static DECLARE_WAIT_QUEUE_HEAD(button_waitq);
static DECLARE_WAIT_QUEUE_HEAD(waitq);
struct button_irq_desc {
int irq;
int pin;
int pin_setting;
int number;
char *name;
};
static struct button_irq_desc button_irqs [] = {
{IRQ_EINT2, S3C2410_GPF2 , S3C2410_GPF2_EINT2 , 2, "KEY3"},
};
/* 鐢ㄦ潵鎸囧畾LED鎵 |
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