On Thu, Dec 03, 2009 at 07:52:30PM -0600, myuboot@xxxxxxxxxxx wrote: > Hi, What is the use of PIR register for AR7 board in file > arch/mips/ar7/irq.c? it gives back the channel and line of the pending interrupt with the highest priority. > If I understand it right, PIR is used to define the > polarity of the interrupts. It seems to me that it needs to initialized? no, it's a read only register. Why do you think it has something to do with interrupt polarity ? Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]
