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Dialogic 6.2 User Manual

Page 396

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About Plug and Play Components

November 2009

396

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Once you identify the INF file (specifically trxstream.inf), the
following actions occur.

For an authoritative description of the Plug and Play install

process always use information from Microsoft (available at

MSDN).

1. During the hardware installation, Windows® creates a new

device under

Computer Telephony H

class. The Device Manager

lists all Brooktrout hardware devices under

Computer Telephony

class/node:

Class = Computer Telephony

Class GUID = {8CF4CA66-A2CC-48FA-BC1D-6A64E47F6D27}

2. Copies the driver files for the identified device to the

system32\drivers folder.

3. Copies the device co-installer and device property page to the

system32 folder.

4. Registers the device co-installer and device property page on the

host system.

5. Installs the device driver(s) if not already installed.
6. Starts the device driver(s).
7. The Plug and Play process then continues with the invocation of

the device co-installer.

About the Dialogic® Brooktrout® Plug and Play Co-Installer

The Plug and Play Device Co-Installer Page is a custom DLL

(brktBdevco.dll) built using a Microsoft provided Setup API.

When a Plug and Play operating system detects any hardware, it

allocates the necessary resources to the hardware (Plug and Play). In

most single function devices or sometimes even multi-function

devices, the devices are ready for use after this process ends.

However in the case of extensible and configurable communications

hardware such as the Brooktrout hardware series, the end user must

configure the module in a separate process before the hardware is

ready for communications applications.

The Plug and Play co-installer provides a page that:

„

Informs the user that they need to configure the detected

hardware