The LSI (Agere) OHCI Compliant IEEE 1394a Host Controller driver enables Windows to communicate with the computer’s FireWire controller and manage compatible IEEE 1394a devices. For Point Grey Research camera setups, the correct controller driver helps establish the connection between the FireWire hardware and the software used to access the camera.

Key Features

• IEEE 1394a connectivity: Provides controller support for compatible FireWire devices, including cameras that use an IEEE 1394a connection.
• OHCI controller operation: Allows Windows to work with the host controller through the Open Host Controller Interface, supporting device detection and data transfers.
• Support for multiple Windows versions: Driver options cover Windows 10, 8.1, 7, Vista, and XP. Select a package that explicitly matches your operating system and its 32-bit or 64-bit architecture.
• Foundation for camera software: Supplies the host-controller support needed by compatible Point Grey Research imaging applications. Camera-specific drivers or an SDK may also be required.

How to Install

1. Check the controller and operating system. Open Device Manager and locate the controller under “IEEE 1394 Bus host controllers” or, if it is not recognized, “Other devices.” Confirm that its hardware IDs match the intended driver package, and check your Windows version and system architecture.

1. Download the matching driver. Choose the package listed for the LSI (Agere) OHCI Compliant IEEE 1394a Host Controller and your version of Windows. Review any included compatibility notes, especially if the computer runs camera acquisition software.

1. Prepare for installation. Close imaging applications and extract the download if it is compressed. Where available, create a system restore point before replacing an existing driver.

1. Install the driver. Run the supplied installer with administrator privileges. If the package contains driver files without an installer, right-click the controller in Device Manager, choose the driver-update option, and browse to the extracted folder. Follow the prompts and restart Windows if requested.

1. Verify the connection. Return to Device Manager and confirm that the controller appears without a warning icon. Connect your compatible FireWire device according to its manufacturer’s instructions, then test it in the appropriate application.

If the controller is recognized but a camera remains unavailable, check its power supply, FireWire cable, and required camera software before changing the controller driver again.

Common Issues and Fixes

• Install fails or rolls back: The legacy Point Grey/LSI 1394a driver may be blocked by driver signature enforcement or a newer inbox 1394 OHCI driver. Run the vendor package as administrator, disable signature enforcement only if required, and reboot before retrying.
• Device not detected: Confirm the camera and LSI (Agere) OHCI IEEE 1394a controller appear in Device Manager, try a known-good 6-pin 1394 cable and external power, and avoid unpowered hubs/repeaters. Reseat the PCI/PCIe card and test another slot.
• Version/driver conflict: Windows may load its generic IEEE 1394 host controller driver instead of the Point Grey build. Remove or roll back conflicting 1394 entries, then manually select the Point Grey/LSI driver and reboot.