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hi all, i writing keypad driver on *mx21 ads board for * kernel 2.6.14 i got a problem on interrupt handling , the isr routine for kpp 1.when interrupt occur first i disable interrupt by clear KRIE and KDIE bit 2.next i scan key pad matrix 3.clear KPDK bit (but when i read this bit i can see that KPDK flag bit is still not cleared) 4.then i enable KDIE bit again all above 1,2,3,4 written within interrupt handler (is this a problem?); my problem is KPP interrupt handler run over and over again after once i touch a key and release it please help thanks dilan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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