# RDC R6040 - emllR6040

The parameters to the Real-time Ethernet Driver RDC R6040 are setup-specific. The function `CreateLinkParmsFromCmdLineR6040()` in [`EcSelectLinkLayer.cpp`](_downloads/bf62c71a4a7e317930818b9da4a9815c/EcSelectLinkLayer.cpp) demonstrates how to initialize the Real-time Ethernet Driver instance.

### struct EC_T_LINK_PARMS_R6040

### Public Members

### [EC_T_LINK_PARMS](emll_init.html.md#_CPPv415EC_T_LINK_PARMS) linkParms

Common link parameters. Signature must be set to EC_LINK_PARMS_SIGNATURE_R6040. 

### [EC_T_DWORD](api.html.md#_CPPv410EC_T_DWORD) dwTxDmaDesCnt

Transmit DMA descriptor buffer count. Must be a power of 2, maximum 256. 

### [EC_T_DWORD](api.html.md#_CPPv410EC_T_DWORD) dwRxDmaDesCnt

Receive DMA descriptor buffer count. Must be a power of 2, maximum 256. 

## Supported PCI devices

<!-- -*- mode: rst -*- -->

RDC R6040 PCI specific definitions (VendorId, DeviceId)