WRITE_REGISTER_UCHAR function (wudfddi_hwaccess.h)

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

The WRITE_REGISTER_UCHAR routine writes a byte to the specified address.

Syntax

void WRITE_REGISTER_UCHAR(
  IWDFDevice3 *pDevice,
  PUCHAR      Register,
  UCHAR       Value
);

Parameters

pDevice

[in] Specifies a pointer to the IWDFDevice3 interface for the device object of the device to access.

Register

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

Value

[in] Specifies a byte to write to the register.

Return value

None

Remarks

For more information, see Reading and Writing to Device Registers in UMDF 1.x Drivers.

Requirements

   
End of support Unavailable in UMDF 2.0 and later.
Target Platform Desktop
Minimum UMDF version 1.11
Header wudfddi_hwaccess.h