The LSI 1394 OHCI Compliant Host Controller driver allows Windows to communicate with the computer’s IEEE 1394, commonly known as FireWire, controller. This Microsoft-provided driver supports the connection between the controller and compatible peripherals, such as external storage devices, audio interfaces, and digital video cameras.

Key Features

• FireWire controller support: Enables Windows to recognize and operate the LSI 1394 OHCI Compliant Host Controller through the Open Host Controller Interface standard.
• Peripheral communication: Provides the controller-level support needed for data transfers with compatible IEEE 1394 equipment. Some connected devices may also require their own drivers or software.
• Windows integration: Works with Windows hardware-management tools, allowing you to check controller status, update the driver, or troubleshoot issues in Device Manager.
• Support across Windows versions: Driver options cover Windows 10, 8.1, 7, Vista, and XP. Choose a package that matches your specific Windows version and, where applicable, its 32-bit or 64-bit architecture.

How to Install

1. Confirm your controller and Windows version. Open Device Manager and locate the controller under “IEEE 1394 Bus host controllers.” If it appears as an unknown device, check its hardware IDs in Properties before choosing a driver.

1. Select a compatible download. Verify that the driver package supports the LSI 1394 OHCI Compliant Host Controller and your installed operating system. Do not assume that a package intended for Windows XP or Vista will also work on Windows 10.

1. Prepare the driver files. Download the package and extract it if it is compressed. Save any open work and safely disconnect FireWire storage devices before updating the controller driver.

1. Install or update the driver. Run the included installer if one is provided. Otherwise, right-click the controller in Device Manager, choose the driver-update option, and browse to the extracted folder. Menu wording varies between Windows versions.

1. Restart and verify operation. Restart the computer if prompted, then check Device Manager for warning icons. Reconnect your FireWire device and test it with its usual application.

If Windows reports that a suitable driver is already installed, an update may not be necessary. For connection problems, also check the FireWire cable, the peripheral’s power supply, and any device-specific software requirements.

Common Issues and Fixes

• Install fails or shows Code 10/28: Uninstall the controller in Device Manager, including driver software, then rescan. Use Update driver > Browse > Let me pick and select the Microsoft 1394 OHCI Compliant Host Controller or Legacy driver if listed.
• Device not detected: Check the FireWire cable and port, device power, and BIOS/UEFI IEEE 1394 setting. Try another cable/port and confirm the controller is enabled in Device Manager; laptop ExpressCard/PCMCIA slots must also be powered.
• Driver/version conflicts: Third-party 1394 stacks or OEM drivers can conflict with the Microsoft LSI 1394 OHCI driver. Roll back or remove third-party 1394 software, then reinstall the inbox Microsoft driver consistently.