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如何在AM3354上设置GPIO中断的优先级

Other Parts Discussed in Thread: AM3354

各位大师。

    我现在在kernel 3.2.0的BSP上用AM3354。用GPIO来当成中断输入。(gpio1_17和gpio1_18)

   但是发现从硬件中断来,到真正进入kernel的中断处理函数,要1ms以上的时间。

   有什么代码可以修改gpio的中断的优先级呢?