Like all kernel-mode multimedia drivers, kernel-mode video capture drivers must provide a DriverEntry function for handling initialization and configuration operations. This DriverEntry for multimedia drivers is the first function called after a kernel-mode driver is loaded.
For more information about the contents of a video capture driver’s DriverEntry function, see Initializing and Configuring a Driver, Using VCKernel.lib. The DriverEntry function for the sample video capture driver, bravado.sys, is located in \src\mmedia\vidcap\bravado\driver\init.c.