Dynamic Port Driver Configuration

The Intel^® Embedded Media and Graphics Driver supports many third-party digital transmitters connected to the sDVO ports of the SCH though device drivers called port drivers. These port drivers are dynamically loaded at startup. The driver configuration can be modified to add or remove availability of specific port drivers.

This section describes the portions of the iegd.inf file that can be modified to either add or remove a port driver for the Microsoft Windows version of the Intel^® Embedded Media and Graphics Driver.

iegd.PortDrvs_xxx

The first step in either adding or removing a port driver is to identify the family of the chipset you are using. Next locate the appropriate [iegd.PortDrvs_xxx] section for your graphics family. Below are the default settings for the blocks of associated port drivers for a particular graphics chipset family:

[iegd.PortDrvs_plb]

sdvo.sys

lvds.sys

[iegd.PortDrvs_tnc]

sdvo.sys

lvds.sys

To remove one or more port drivers, delete the associated line from the iegd.PortDrvs_xxx block. To add a port driver, add the associated line into the appropriate iegd.PortDrvs_xxx block. For example, to add a new port driver for a device named “NewPD”, add the following line to the iegd.PortDrvs_alm block:

NewPD.sys

SourceDisksFiles

To either add or remove a port driver, identify the specific port driver file names in the SourceDisksFiles blocks. The default settings are as follows:

[SourceDisksFiles]

iegdmini.sys = 1

iegdckey.vp = 1

iegdmsys.vp = 1

iegdcagt.cpa = 1

iegdcagt.vp = 1

iegddis.dll = 1

iegd3dga.dll = 1

iegdglga.dll = 1

libGLES_CM.dll = 1

libGLESv2.dll = 1

lvds.sys = 1

sdvo.sys = 1

sdvo.vp = 1

lvds.vp = 1

To remove a port driver, delete the associated line in the [SourceDisksFiles] block. To add a port driver, add the associated line to the block. For example, to add a port driver for a device whose driver is named NewPD.sys, add the following line:

NewPD.sys = 1

PortDrivers Registry Key

Modify the registry key in the appropriate [iegd_SoftwareDeviceSettings_xxx] section that defines the list of available port drivers. Below are the default values of this registry key in the iegd.inf file:

For the [iegd_SoftwareDeviceSettings_tnc] block:

HKR,, PortDrivers, %REG_SZ%, “sdvo lvds”

Remove or add port driver names as appropriate to the list of port drivers specified within the quoted string. For example, to add support for a new port driver named “NewPD”, the registry key would be defined as follows:

HKR,, PortDrivers, %REG_SZ%, "lvds NewPD"