AN335

Rev. 0.4

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5. INF-Only Driver Management

5.1. Installation

In certain cases it is necessary, or desirable, to point directly to an INF file in a driver package to install the driver.

The best way to do this is to perform the following steps:

1. Plug your device in to a USB port.

2. Open Device Manager and look for the device to appear:

a. If the device doesn’t already have a driver installed, it will show up with a yellow exclamation point in

the Other devices section. Here is an example of a CP2103 with no driver associated with the device:

b. If the device is associated with a driver, then it could show up in it’s proper device list. Here is an

example of a CP2103 with a driver associated with the device:

Note: If the device is already associated with the driver, it may be preferable to uninstall the driver from Control Panel if the

option is available. If there is not an entry in Control Panel to uninstall the device, then right-click on the device and

select Uninstall. Then, check the box that says Delete the driver software for this device and click OK. When the

device is connected again, it should no longer be associated with the driver.

3. Right-click on the device and select Update driver software….

4. A dialog box will appear with driver update options. Click Browse my computer… to point to a specific INF

file:

5. In the next dialog box, click the Browse… button to locate folder that contains the INF to install:

6. If the installation succeeds, a success dialog box will appear: