Using IOCTL_ACPI_EVAL_METHOD
in [Device Drivers]
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From: hasyed on 6 Aug 2010 14:40 Doron, Thanks for the reply. So, I assume my only option is to build a driver for the device. But once I do that, it is not completely clear to me what I am supposed to do. I assume that I cannot use IOCTL_ACPI_EVAL_METHOD to get the thermal zone temperature. I have to access on the operation region once I get a handle to it. Even after reading the documentation on http://msdn.microsoft.com/en-us/library/ff536161(VS.85).aspx, I still feel that there is something chunk missing. What am I supposed to write to the operation region so that I am returned the temperature? "Doron Holan [MSFT]" wrote: > you cannot send this IOCTL from user mode, the driver will not process it >
From: hasyed on 9 Aug 2010 15:33
Doron, Appreciate your response to my question posed below. Thanks "hasyed" wrote: > Doron, > > Thanks for the reply. > > So, I assume my only option is to build a driver for the device. But once I > do that, it is not completely clear to me what I am supposed to do. I assume > that I cannot use IOCTL_ACPI_EVAL_METHOD to get the thermal zone temperature. > I have to access on the operation region once I get a handle to it. Even > after reading the documentation on > http://msdn.microsoft.com/en-us/library/ff536161(VS.85).aspx, I still feel > that there is something chunk missing. What am I supposed to write to the > operation region so that I am returned the temperature? > > "Doron Holan [MSFT]" wrote: > > > you cannot send this IOCTL from user mode, the driver will not process it > > > |