Download VIA Port Devices Driver
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The MIDI port driver manages a MIDI synthesizer or capture device. The adapter driver provides a corresponding MIDI miniport driver that binds to the MIDI port driver object to form a MIDI filter (see MIDI and DirectMusic Filters) that can capture or render a MIDI stream.
The MIDI port driver exposes an IPortMidi interface to the miniport driver. IPortMidi inherits the methods in base interface IPort. IPortMidi provides the following additional methods:
Notifies the port driver that the MIDI synthesizer or capture device has advanced to a new position in the MIDI stream.IPortMidi::RegisterServiceGroup
Registers a service group object with the port driver.A service group contains a list of one or more service routines that are to be called when the miniport driver calls Notify; for more information, see Service Sink and Service Group Objects.
Virtual COM Port Driver Installation Manual Installing the virtual COM port driver software on a computer makes possible CAT communication via a USB cable to the SCU-17 or an compatible transceivers. This will allow computer control of TX (PTT, KEY, FSK), and the audio In/Out interface (except the FT-891). Welcome to the VIA Driver Download Portal. To obtain the latest available version of your VIA driver, please follow the steps below. If you are using Windows ® 7, 8, 8.1 or 10, please refer to our Driver & Support FAQ for detailed driver information.
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The MIDI port and miniport driver objects communicate with each other through their respective IPortMidi and IMiniportMidi interfaces. The miniport driver uses the port driver's IPortMidi interface to notify the port driver of hardware interrupts. In addition, the port driver communicates with the miniport driver's stream objects through their IMiniportMidiStream interfaces.
In Windows XP and later, the IPortMidi and IPortDMus interfaces are both implemented in a single internal driver module. This consolidation is facilitated by the similarity of these two interfaces. For example, the same methods are defined for both interfaces. Applications written for previous versions of Windows should see no change in the behavior of the IPortMidi and IPortDMus interfaces resulting from consolidation of the MIDI and DMus port drivers.
Before you begin
Driver updates for Windows 10, along with many devices, such as network adapters, monitors, printers, and video cards, are automatically downloaded and installed through Windows Update. You probably already have the most recent drivers, but if you'd like to manually update or reinstall a driver, here's how:
Download Via Port Devices Driver Windows 7
Update the device driver
In the search box on the taskbar, enter device manager, then select Device Manager.
Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update.
Select Search automatically for updated driver software.
Select Update Driver.
If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions.
Reinstall the device driver
In the search box on the taskbar, enter device manager, then select Device Manager.
Right-click (or press and hold) the name of the device, and select Uninstall.
Restart your PC.
Windows will attempt to reinstall the driver.
Download Via Port Devices Drivers
More help
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