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READ_REGISTER_UCHAR routine

The READ_REGISTER_UCHAR routine reads a byte from the specified register address.

Syntax


UCHAR READ_REGISTER_UCHAR(
  _In_  PUCHAR Register
);

Parameters

Register [in]

Pointer to the register address, which must be a mapped range in memory space.

Return value

READ_REGISTER_UCHAR returns the byte read from the specified register address.

Remarks

Callers of READ_REGISTER_UCHAR can be running at any IRQL, assuming the Register is resident, mapped device memory.

Requirements

Version

Available starting with Windows 2000.

Header

Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h)

Library

Ntoskrnl.lib

IRQL

Any level (see Remarks section)

 

 

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