WDF_READ_REGISTER_UCHAR function (wdfhwaccess.h)

• 02/26/2018
• 2 分钟可看完

[Applies to UMDF only]

The WDF_READ_REGISTER_UCHAR function reads a byte from the specified register address.

Syntax

WDF_EXTERN_C_START UCHAR WDF_READ_REGISTER_UCHAR(
  WDFDEVICE Device,
  PUCHAR    Register
);

Parameters

Device

[in] A handle to a framework device object.

Register

[in] A pointer to the register address, which must be a mapped range in memory space.

Return value

WDF_READ_REGISTER_UCHAR returns the byte that is read from the specified port address.

Requirements