> For the complete documentation index, see [llms.txt](https://docs.intrepidcs.com/neovi-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intrepidcs.com/neovi-api/win32-api-overview-intrepidcs-api/structures-types-and-defines-overview-intrepidcs-api/setting-structures-overview-intrepidcs-api/phyregpktclausemess_t-structure.md).

# PhyRegPktClauseMess\_t Structure

Structure for reading PHY information from a hardware device

{% tabs %}
{% tab title="C/C++ Declare 1" %}

```cpp
typedef struct __declspec (align(8))
{
  uint16_t Flags;
  PhyRegPktClauseMess_t ClausePkt;
}PhyRegPkt_t;
```

{% endtab %}

{% tab title="C/C++ Declare 2" %}

```cpp
typedef struct __declspec (align(8))
{
  unsigned char phyAddrOrPort;
  unsigned char pageOrDevice;
  unsigned short regAddr;
  unsigned short regVal;
}PhyRegPktClauseMess_t;
```

{% endtab %}

{% tab title="Visual Basic .NET Declare 1" %}

```vbnet
<StructLayout(LayoutKind.Sequential, Pack:=8)> Public Structure PhyRegPkt_t
  Dim Flags As UInt16
  Dim ClausePkt As PhyRegPktClauseMess_t
End Structure
```

{% endtab %}

{% tab title="Visual Basic .NET Declare 2" %}

```vbnet
<StructLayout(LayoutKind.Sequential, Pack:=8)> Public Structure PhyRegPktClauseMess_t
  Dim phyAddrOrPort As Byte
  Dim pageOrDevice As Byte
  Dim regAddr As UInt16
  Dim regVal As UInt16
End Structure
```

{% endtab %}

{% tab title="C# .NET Declare 1" %}

```csharp
[StructLayout(LayoutKind.Sequential,Pack=8)]
public struct PhyRegPkt_t
{
  public UInt16 Flags;
  public PhyRegPktClauseMess_t ClausePkt;
}
```

{% endtab %}

{% tab title="C# .NET Declare 2" %}

```csharp
[StructLayout(LayoutKind.Sequential,Pack=8)]
public struct PhyRegPktClauseMess_t
{
  public byte phyAddrOrPort;
  public byte pageOrDevice;
  public UInt16 regAddr;
  public UInt16 regVal;
}
```

{% endtab %}
{% endtabs %}

**Remarks**

| Item PhyRegPkt\_t | Description                                                                                                                                                     |
| ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Flags             | <p>Bitfield for direction and data type</p><p>Bit 0: 1=Enabled, 0=Disable</p><p>Bit 1: 1=Enable Write, 0=Read</p><p>Bit 2: 1=Use Clause 45, 0=Use Clause 22</p> |
| ClausePkt         | See PhyRegPktClauseMess\_t structure                                                                                                                            |

| Item PhyRegPktClauseMess\_t | Description                                               |
| --------------------------- | --------------------------------------------------------- |
| phyAddrOrPort               | Set the Address for Clause 22 Sets the Port for Clause 45 |
| pageOrDevice                | Set the Page for Clause 22 Sets the Device for Clause 45  |
| regAddr                     | Sets the Register Address                                 |
| regVal                      | Holds the Value to Set or read back                       |