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Q: 

Windows CE Samsung ARM9 device GPIO auxiliary power VC++

I was using a vendor provided GPIO dll for controlling power through an auxiliary power IO. The api was simple like callafunction(setportidentifiation,state) in vc++ . It was fine working.

But it is not working currently. Calling the function does not respond.But with all other ports its fine ( LED,other set of Input / output ports).

Please suggest any means of fixing it. Any registry settings/ ASM to be written for clearing device register/ device driver related changing/....?. Any kind of possibilities will be helpful.

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