The VIA 1394 OHCI Compliant Host Controller driver enables Windows to communicate with the VIA-based IEEE 1394 controller in your computer, allowing compatible FireWire devices to connect. Microsoft’s driver support helps manage data transfers between the controller and equipment such as digital camcorders, external drives, and audio interfaces. Select a driver package that matches your Windows version and system architecture before installing.

Key Features

• IEEE 1394 connectivity: Supports communication through compatible FireWire ports for connecting legacy peripherals.
• OHCI support: Uses the Open Host Controller Interface standard to let Windows manage the controller and its connected devices.
• Data transfer management: Handles controller-level communication for supported storage, video, and audio equipment. Some peripherals may also require their own drivers or software.
• Windows integration: Works with Windows driver-management tools, including Device Manager. Driver availability and installation requirements vary across Windows 10, 8.1, 7, Vista, and XP.

How to Install

1. Check your system and controller. Confirm your Windows version and whether it uses a 32-bit or 64-bit architecture. Open Device Manager and look under “IEEE 1394 Bus host controllers” to verify the hardware. If the controller is unidentified, check its hardware IDs in Properties.

1. Choose a compatible driver. Download a package intended for the VIA 1394 OHCI Compliant Host Controller and your exact operating system. Windows may already include a suitable Microsoft driver, so check Device Manager or Windows Update before installing another package.

1. Prepare the files. Extract the download if it is compressed. Close any applications using FireWire equipment, and safely disconnect active storage devices before changing the controller driver.

1. Install or update the driver. Run the supplied installer if one is included. Otherwise, right-click the controller in Device Manager, select “Update driver” or “Update Driver Software,” and browse to the extracted driver folder. Menu wording differs between Windows versions.

1. Restart and test the connection. Restart if prompted, then check that the controller appears without a warning icon in Device Manager. Reconnect your FireWire device and test it with the appropriate software. If it remains unrecognized, inspect the cable, power supply, and any device-specific driver requirements.

Common Issues and Fixes

• Install fails or Code 10/28: Windows may reject an old VIA package. Use Device Manager > Update driver > Browse > Let me pick > IEEE 1394 host controllers, or install the Microsoft `1394ohci.sys` driver. Ensure the package is signed and matches Windows architecture.
• Device not detected / no FireWire port: Reseat the PCI/PCIe card, check BIOS for a disabled 1394 controller, and test another cable/port. Confirm it appears under IEEE 1394 host controllers; if not, scan for hardware changes.
• Version conflicts after Windows Update: The inbox Microsoft 1394 OHCI driver can replace a VIA-specific one. Roll back in Device Manager > Properties > Driver, or uninstall the VIA package and let Windows reinstall the inbox driver; remove hidden old devices.