Intel 82854 GMCH, 82830M GMCH manual Port Driver TV Encoder DLL Attributes

4.2Port Driver (TV Encoder DLL) Attributes

Port driver (TV Encoder DLL) attributes are used if the display type is either DVO-only or Twin. In that case, the display driver reads port driver attribute settings from the registry, tests their values, and if they are valid, passes them to the port driver during initialization. Port driver attributes have Boolean, range, String, or list types. Boolean attributes values must be 0 or 1. Range attributes must match the minimum, maximum, or an internal value computed using the step – similar to a “for” loop in C Language “for (valid = min; valid <= max, valid += step)”. String values are typically read-only. List values must match one of the list entries.

If an attribute name does not match a supported attribute or if an out of range value is used, the display driver will fail to load and this will result in a GWES exception.

Port driver attributes are set at the following key:

[HKEY_LOCAL_MACHINE\Drivers\Display\Intel\Param\Attr]

4.2.1Port Driver Attribute Notes

Note: If an attribute name does not match a supported attribute, or if an out of range value is used, the display driver will fail to load and this will result in a GWES exception.

Note: The port drivers include a TV Format attribute. Please note that changing this attribute at run-time is not supported in the display driver.

4.2.2Conexant Port Driver Attributes

See the configuration file video.reg for information on the Conexant port driver attributes. Look for details in the section entitled “Conexant CX25873/CX25892 port attributes”. Contact Conexant for more information on the Conexant port driver.

Intel® Digital Set Top Box Display Driver 21

User’s Guide for Microsoft* Windows* CE 5.0