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This article describes an issue that occurs when you use a FireWire port-based device in Windows 8.1 or Windows 8. Additional steps of configuration is required to enable this update after the installation.
Assume that you have a computer that equips with an IEEE 1394 FireWire controller card. After you upgrade the computer from Windows 7 to Windows 8.1 or Windows 8, devices that connect to the computer by using a FireWire port do not work.
This issue occurs because the legacy 1394 bus drivers (1394bus.sys and Ochi1394.sys) are removed in Windows 8.1 or Windows 8.
How to obtain this update
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
All supported x86-based versions of Windows 8.1 or of Windows 8
All supported x64-based versions of Windows 8.1 or of Windows 8
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Additional steps of configuration requirement
After you install the 1394 OHCI Legacy Driver.msi file, follow these steps:
Right-click the Legacy1394.inf file under one of the following paths based on the computer's architecture:
C:Program Files1394 OHCI Compliant Host Controller (Legacy)x86_driver
C:Program Files1394 OHCI Compliant Host Controller (Legacy)x64_driver
Open Device Manager in Control Panel.
Expand IEEE 1394 Bus host controllers, and then locate the host controller.
Right-click the host controller, and then click Update Driver Software.
The screen shot of the host controller and the Update Driver Software is listed in the following example:
Click Browse my computer for driver software.
Click Let me pick from a list of device drivers on my computer.
Click Generic1394 OHCI compliant host controller (Legacy), and then click the Next button.
Click the Close button.
There are no prerequisites for installing this update.
To apply this update, you do not have to make any changes to the registry.
You have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 8.1 and Windows 8 file information notesThe MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed
For all supported x86-based versions of Windows 8.1 or of Windows 8
For all supported x86-based versions of Windows 8.1 or of Windows 8
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the 'Applies to' section.
Steps of uninstalling the 1394 OHCI Legacy Driver.msi file
Open Control Panel in the Category view.
Click Uninstall a program in Control Panel.
Right-click 1394 OHCI Compliant Host Controller (Legacy), and then click Uninstall.
The screen shot of uninstalling the 1394 OHCI Compliant Host Controller (Legacy) is listed in the following example:
Flexradio Software Downloads
Additional package information
This driver is only intended to work with legacy 1394 host controllers. Therefore, you may experience lower transfer data rates than the 1394b driver.
The driver is intended to resolve compatibility issues for 1394 peripherals on 1394b systems. If you are not experiencing these issues, you should continue to use inbox drivers that are provided in Windows 8.1 or Windows 8.
You have to reinstall this stand-alone driver package if you upgrade to a newer operating system version in the future.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
LSI 1394 OHCI COMPLIANT HOST DRIVER DETAILS:
|File Size:||17.7 MB|
|Supported systems:||Windows Vista (32/64-bit), Windows XP (32/64-bit), Windows 8, Windows 10|
|Price:||Free* (*Free Registration Required)|
Flexradio 1394 Driver Download For Windows
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If the drives are now showing as unallocated it seems to me that the drives have been removed without using the safely remove hardware tool. In which case the drives are not responding because they are broken.
Figure : Host Controller in Device Manager. Windows Update finds and installs a driver. This problem is usually with the FireWire port that is built into the motherboard. How does HP install software and gather data?
To resolve this problem, connect the computer to the Internet and use the following steps:. Instead of selecting 'Search Automatically Select Let me pick from a list of device drivers on my computer. Site Feedback.
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Relative to the overall usage of users who have this installed on their PCs, most are running Windows 10 and Windows 7 SP1. FlexRadio Systems Knowledge Center. Home Search Tags Glossary Members.
No one has commented yet. Nothing seems to be working For Windows 7, just use the Legacy driver.
E-mail This Review.Hi, I need help to solve an issue I have with my LSI OHCI Compliant Host Controller. I noticed an exclamation mark in Device Manager. It should display something like - OHCI Compliant Host Controller Note: If it has the word (Legacy) behind it, you are already setup and you can just exit out.