READ_REGISTER_UCHAR function (miniport.h)

  • Article

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

Syntax

UCHAR READ_REGISTER_UCHAR(
  [in] volatile UCHAR *Register
);

Parameters

[in] Register

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

Requirement Value
Minimum supported client Available starting with Windows 2000.
Target Platform Universal
Header miniport.h (include Wdm.h, Ntddk.h, Ntifs.h, Ioaccess.h, Miniport.h, Wudfwdm.h)
Library NtosKrnl.lib
DLL NtosKrnl.exe
IRQL Any level (see Remarks section)