|
embedsky_lhh 发表于 2012-11-14 09:43
串口原来就都有驱动了
/* 注册中断 */
rc = request_irq(IRQ_S3CUART_RX1, irq_read, 0, "irq_read", NULL);
if (rc)
{
printk("irq_read not registered! Err:%d\n", rc);
}
printk("register irq_read ok!\n");
rc = request_irq(IRQ_S3CUART_TX1, irq_write, IRQF_DISABLED, "irq_write", NULL);
if (rc)
{
printk("irq_write not registered! Err:%d\n", rc);
}
printk("register irq_write ok!\n");
IRQ_S3CUART_RX1 可以申请
IRQ_S3CUART_TX1 就不行
为什么。。。 |
|