Drivers SMI USB Devices

Feb 04, 2021 Below, we are sharing the links to USB drivers for most of the popular Android device manufacturers like Samsung, LG, Sony, Google, HTC, Motorola, Dell, etc. These USB drivers are safe to use as they are from their respective manufacturers. All the links are valid and official. We recommend you to download the latest USB drivers. This page contains the driver installation download for SMI USB DISK USB Device in supported models (HP ProBook 12345) that are running a supported operating system.

SMI USB DISK USB Device - there are 6 drivers found for the selected device, which you can download from our website for free. Select the driver needed and press download.
SMI Grabber Device is developed by Somagic, Inc. And is used by 71 users on Drivers Informer.
SMI USB MEMORY BAR USB Device last downloaded: - 2020 version. Download Rating: 93%. Driver software: SMI USB MEMORY BAR USB Device - drivers for windows 7, Device drivers: SMI.

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Universal Serial Bus (USB) provides an expandable, hot-pluggable Plug and Play serial interface that ensures a standard, low-cost connection for peripheral devices such as keyboards, mice, joysticks, printers, scanners, storage devices, modems, and video conferencing cameras. Migration to USB is recommended for all peripheral devices that use legacy ports such as PS/2, serial, and parallel ports.

The USB-IF is a Special Interest Groups (SIGs) that maintains the Official USB Specification, test specifications and tools.

Windows operating systems include native support for USB host controllers, hubs, and devices and systems that comply with the official USB specification. Windows also provides programming interfaces that you can use to develop device drivers and applications that communicate with a USB device.

USB in WindowsWindows 10: What's new for USB

Overview of new features and improvements in USB in Windows 10.

USB FAQ

Frequently asked questions from driver developers about the USB stack and features that are supported in USB.

Microsoft OS Descriptors for USB Devices

Windows defines MS OS descriptors that allows better enumeration when connected to system running Windows operating system

Microsoft-provided USB driversUSB device-side drivers in Windows

A set of drivers for handling common function logic for USB devices.

USB host-side drivers in Windows

Microsoft provides a core stack of drivers that interoperate with devices that are connected to EHCI and xHCI controllers.

USB-IF device class drivers

Windows provides in-box device class drivers for many USB-IF approved device classes, audio, mass storage, and so on.

USB generic function driver–WinUSB

Windows provides Winusb.sys that can be loaded as a function driver for a custom device and a function of a composite device.

USB generic parent driver for composite devices–Usbccgp

Parent driver for USB devices with multiple functions. Usbccgp creates physical device objects (PDOs) for each of those functions. Those individual PDOs are managed by their respective USB function drivers, which could be the Winusb.sys driver or a USB device class driver.

WDF extension for developing USB drivers

USB connector manager class extension (UcmCx) reference
USB host controller (UCX) reference
USB function class extension (UFX) reference

Testing USB devices with Windows

Get information about the tools that you can use to test your USB hardware or software, capture traces of operations and other system events, and observe how the USB driver stack responds to a request sent by a client driver or an application.

Read an overview of tests in the Hardware Certification Kit that enable hardware vendors and device manufacturers to prepare their USB devices and host controllers for Windows Hardware Certification submission.

Other Resources for USB

Official USB Specification

Provides complete technical details for the USB protocol.

Microsoft Windows USB Core Team Blog

Check out posts written by the Microsoft USB Team. The blog focuses on the Windows USB driver stack that works with various USB Host controllers and USB hubs found in Windows PC. A useful resource for USB client driver developers and USB hardware designers understand the driver stack implementation, resolve common issues, and explain how to use tools for gathering traces and log files.

OSR Online Lists - ntdev

Discussion list managed by OSR Online for kernel-mode driver developers.

Tascam da-6400 control: tascam dcp connect: tascam dr control: tascam ez connect: tascam hi-res editor: tascam mx connect: tascam pcm recorder: tascam ss250 control: tascam trackpack 2x2: tascam trackpack 4x4: tascam trackpack ixr: tc-1s: tc-8: tg-7: th-02: th-05: th-06: tm-10l: tm-150sg: tm-180: tm-280: tm-2x: tm-60: tm-80: tm-90bm: tm-95gn. Us 144 tascam driver download.

Windows Dev-Center for Hardware Development

Miscellaneous resources based on frequently asked questions from developers who are new to developing USB devices and drivers that work with Windows operating systems.

USB-related videos

UWP apps for USB devicesUnderstanding USB 3.0 in Windows 8Building great USB 3.0 devicesUSB Debugging Innovations in Windows 8 (Part I, II, & III)

USB hardware for learning

MUTT devices

MUTT and SuperMUTT devices and the accompanying software package are integrated into the HCK suite of USB tests. They provide automated testing that can be used during the development cycle of USB controllers, devices and systems, especially stress testing.

OSR USB FX2 Learning Kit

If you are new to USB driver development. The kit is the most suitable to study USB samples included in this documentation set. You can get the learning kit from OSR Online Store.

Write a USB client driver (KMDF, UMDF)

Introduces you to USB driver development. Provides information about choosing the most appropriate model for providing a USB driver for your device. This section also includes tutorials about writing your first user-mode and kernel-mode USB drivers by using the USB templates included with Microsoft Visual Studio.

Write a USB host controller driver

If you are developing an xHCI host controller that is not compliant with the specification or developing a custom non-xHCI hardware (such as a virtual host controller), you can write a host controller driver that communicates with UCX. For example, consider a wireless dock that supports USB devices. The PC communicates with USB devices through the wireless dock by using USB over TCP as a transport.

USB host controller (UCX) reference

Write a function controller driver for a USB device

You can develop a controller driver that handles all USB data transfers and commands sent by the host to the device. This driver communicates with the Microsoft-provided USB function controller extension (UFX).

USB function class extension (UFX) reference

Write a USB Type-C connector driver

Windows 10 introduces support for the new USB connector: USB Type-C. You can write a driver for the connector that communicates with the Microsoft-provided class extension module: UcmCx to handle scenarios related to Type-C connectors such as, which ports support Type-C, which ports support power delivery.

USB connector manager class extension (UcmCx) reference

Write a USB dual-role controller driver

USB Dual Role controllers are now supported in Windows 10. Windows includes in-box client drivers for ChipIdea and Synopsys controllers. For other controllers, Microsoft provides a set of programming interfaces that allow the dual-role class extension (UrsCx) and its client driver to communicate with each other to handle the role-switching capability of a dual-role controller.

For more information about this feature, see:

USB dual-role controller driver programming reference

Write a USB driver for emulated devices

Windows 10 introduces support for emulated devices. Now you can develop an emulated Universal Serial Bus (USB) host controller driver and a connected virtual USB device. Both components are combined into a single KMDF driver that communicates with the Microsoft-provided USB device emulation class extension (UdeCx).

Emulated USB host controller driver programming reference

Write a UWP app

Provides step-by-step instructions about implementing USB features in a UWP app. To write such an app for a USB device you need Visual Studio and Microsoft Windows Software Development Kit (SDK) .

Write a Windows desktop app

Describes how an application can call WinUSB Functions to communicate with a USB device.

WinUSB functions

Common programming scenarios

List of common tasks that a driver or an app performs in order to communicate with a USB device. Get quick info about the programming interfaces you need for each task.

USB samples

Development tools

Download kits and tools for Windows

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Describes the architecture of the USB function stack.

On a USB device, the USB function stack refers to a group of drivers that are enumerated by the Plug and Play Manager, when ACPI creates a USB device physical device object (PDO).

In a single configuration device, a USB device can define one or more interfaces. For example, the Media Transfer Protocol (MTP) for transferring files to and from the device. A composite USB device can support multiple interfaces in a single configuration. The USB function stack creates PDOs for each interface and PnP Manager loads the class driver that creates the function device object (FDO) for that interface.

The USB function stack is conceptualized in this image:

Applications and Services

All user-mode requests are sent to the Microsoft-provided kernel-mode class driver GenericUSBFn.sys. You can create a user-mode service that communicates with GenericUSBFn.sys by sending I/O control codes (IOCTLs) as defined in genericusbfnioctl.h. For more information about these IOCTLs see Communicating with GenericUSBFn.sys from a user-mode service

USB function class driver

A USB function class driver implements the functionality of a specific interface (or group of interfaces) on the USB device. MTP and IpOverUsb are examples of system-supplied class drivers. The class driver may be implemented purely as a kernel-mode driver, or it may be a user-mode service paired with the system-supplied class driver GenericUSBFn.sys.

A function class driver sends requests to the controller by using USB function class driver to UFX programming interfaces.

USB function class extension (UFX)

Smi Usb Disk Driver

The USB function class extension (UFX) is a system-supplied extension to Kernel-Mode Driver Framework (KMDF). USB is a standard bus and has some required functionality and capabilities. UFX is responsible for implementing USB function logic that is common to all USB function controllers and handling and/or dispatching requests from USB function class drivers. In particular, UFX handles the process of enumerating the device and processing standard control transfers. To perform some of these operations, UFX needs to know about the capabilities of the bus. Those capabilities are reported to UFX when the class-extension interface is established.

UFX exposes standard IOCTLs that the upper layers (USB function class driver and user mode services) can use to send requests to the controller. Additionally, UFX notify upper layers about the standard requests received from the host.

Smi Usb Flash

USB function client driver

UFX provides an abstracted interface that works consistently across different controllers. However, controllers have different capabilities, with limitations such as the number of endpoints, the types of endpoints, low power, remote wake-up. For example, certain controllers support DMA, while others do not. Some controllers implement streams in the hardware while other controllers expect the driver to handle streams. For these reasons, only common functionality is handled in UFX. Transfers, power management, stream support, and other features which vary from controller to controller are handled by the client driver.

The USB function client driver is responsible for implementing controller-specific operations. These include implementing endpoint data transfers, USB device state changes (reset, suspend, resume), attach/detach detection, port/charger detection. The client driver is also responsible for handling power management, and PnP events.

The function client driver is written as Kernel-Mode Driver Framework (KMDF) driver by using USB function class driver to UFX programming interfaces.

Microsoft provides in-box function client drivers (UfxChipidea.sys, Ufxsynopsys.sys) for ChipIdea and Synopsys controllers.

USB lower filter driver

A USB lower filter driver supports detection of chargers if the function controller uses the in-box Synopsys and ChipIdea drivers. The filter driver manages USB charging starting from USB port detection. t must publish a GUID for each charger type it supports, and a list of that charger’s properties. If a specific charger is configurable, the lower USB filter driver defines a list of supported PropertyIDs and their corresponding value types that can be sent to it, to configure the charger. The driver also notifies the battery stack when it can begin charging and the maximum amount of current the device can draw. For client drivers other than Synopsys and ChipIdea drivers, charging logic can be implemented in the client driver.