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1. Usp Labs Drivers
2. Splabs Dmx Usb Driver

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An SPB peripheral device driver controls a peripheral device that is connected to a simple peripheral bus (SPB). The hardware registers of this device are available only through the SPB. To read from or write to the device, the driver must send I/O requests to the SPB controller. Only this controller can initiate data transfers to and from the device over the SPB.

Starting with Windows 8, Windows provides driver support for peripheral devices on simple peripheral buses (SPBs). SPBs, such as I²C and SPI, are widely used to connect to low-speed sensor devices, such as accelerometers, GPS devices, and battery-level monitors. This overview describes how an SPB peripheral device driver, in cooperation with other system components, controls an SPB-connected peripheral device.

An SPB peripheral device driver can be built to use either the User-Mode Driver Framework (UMDF) or the Kernel-Mode Driver Framework (KMDF). For more information about developing a UMDF driver, see Getting Started with UMDF. For more information about developing a KMDF driver, see Getting Started with Kernel-Mode Driver Framework.

Device Configuration Information

The hardware registers of an SPB-connected peripheral device are not memory-mapped. The device can be accessed only through the SPB controller, which serially transfers data to and from the device over the SPB. To perform I/O operations, the SPB peripheral device driver sends I/O requests to the device, and the SPB controller performs the data transfers that are required to complete these requests. For more information about the I/O requests that can be sent to peripheral devices on SPBs, see Using the SPB I/O Request Interface.

The following diagram shows an example hardware configuration in which an SPB—in this case, an I²C bus—connects two peripheral devices to a System on a Chip (SoC) module. The peripheral devices are external to the SoC module and connect to four pins on the module. The SoC module contains the main processor (not shown), plus an I²C controller and a general-purpose I/O (GPIO) controller. The processor uses the I²C controller to serially transmit data to and from the two peripheral devices. The interrupt request lines from these devices are connected to two GPIO pins that are configured as interrupt inputs. When a device signals an interrupt request, the GPIO controller relays the interrupt to the processor.

Because the GPIO controller and I²C controller in this example are integrated into the SoC module, their hardware registers are memory-mapped and can be directly accessed by the processor. However, the processor can access the hardware registers of the two peripheral devices only indirectly, through the I²C controller.

An SPB is not a Plug and Play (PnP) bus and, therefore, cannot be used to automatically detect and configure new devices that are plugged into the bus. The bus and interrupt connections of an SPB-connected device are frequently permanent. Even if the device can be unplugged from a slot, this slot is typically dedicated to the device. In addition, an SPB does not provide an in-band hardware path for relaying interrupt requests from a peripheral device on the bus to the bus controller. Instead, the hardware path for interrupts is separate from the bus controller.

The vendor for the hardware platform stores the configuration information for an SPB-connected peripheral device in the platform's ACPI firmware. During system startup, the ACPI driver enumerates the devices on the bus for the PnP manager. For each enumerated device, ACPI supplies information about the device's bus and interrupt connections. The PnP manager stores this information in a datastore called the resource hub.

When the device starts up, the PnP manager supplies the device's driver with a set of hardware resources that encapsulate the configuration information that the resource hub stores for the device. These resources include a connection ID and an interrupt number. The connection ID encapsulates bus-connection information, such as the SPB controller, bus address, and bus-clock frequency. Before I/O requests can be sent to the device, the driver must first use the connection ID to open a logical connection to the device. The interrupt number is a Windows interrupt resource to which the driver can connect its interrupt service routine (ISR). The driver can easily be ported from one hardware platform to another because the connection ID and interrupt number are high-level abstractions that hide platform-specific information about the physical bus and interrupt connections.

Software and Hardware Layers

The following block diagram shows the layers of software and hardware that connect a peripheral device on an SPB to an application program that uses the device. The SPB peripheral device driver in this example is a UMDF driver. The peripheral device (at the bottom of the diagram) is a sensor device (for example, an accelerometer). As in the preceding diagram, the peripheral device is connected to an I²C bus and signals interrupt requests through a pin on a GPIO controller.

The three blocks shown in gray are system-supplied modules. Starting with Windows 7, the sensor class extension is available as a sensor-specific extension to the UMDF. Starting with Windows 8, the SPB framework extension (SpbCx) and GPIO framework extension (GpioClx) are available as extensions to KMDF that perform functions that are specific to SPB controllers and to GPIO controllers, respectively.

At the top of the preceding diagram, the application calls the methods in the Sensor API or Location API to communicate with the sensor device. Through these calls, the application can send I/O requests to the device, and receive event notifications from the device. For more information about these APIs, see Introduction to the Sensor and Location Platform in Windows.

When the application calls a method that requires communication with the SPB peripheral device driver, the Sensor API or Location API creates an I/O request and sends it to the SPB peripheral device driver. The sensor class extension module assists the driver in handling these I/O requests. When the driver receives a new I/O request, the driver immediately hands the request to the sensor class extension, which queues the request until the driver is ready to handle it. If an I/O request from the application requires the transfer of data to or from the peripheral device, the SPB peripheral device driver creates an I/O request for this transfer and sends the request to the I²C controller. Such requests are handled jointly by SpbCx and the I²C controller driver.

SpbCx is a system-supplied component that manages the queues of I/O requests for an SPB controller, such as the I²C controller in this example. The I²C controller driver, which is supplied by the hardware vendor for the controller, manages all hardware-specific operations in the I²C controller. For example, the controller driver accesses the memory-mapped hardware registers of the controller to initiate data transfers to and from the peripheral device over the I²C bus.

The peripheral device signals an interrupt request when a hardware event occurs that requires attention from the SPB peripheral device driver or the user-mode application. The interrupt line from the peripheral device is connected to a GPIO pin that is configured to receive interrupt requests. When the device signals an interrupt to the GPIO pin, the GPIO controller signals an interrupt to the processor. In response to this interrupt, the kernel's interrupt trap handler calls GpioClx's ISR. This ISR queries the GPIO controller driver, which then accesses the memory-mapped hardware registers of the GPIO controller to identify the interrupting GPIO pin. To silence the interrupt, the GPIO controller driver either clears (if the interrupt is edge-triggered) or masks (if level-triggered) the interrupt request at the GPIO pin. The interrupt must be silenced to prevent the processor from taking the same interrupt again when the trap handler returns. For a level-triggered interrupt, the ISR in the SPB peripheral device driver must access the hardware registers of the peripheral device to clear the interrupt before the GPIO pin can be unmasked.

Before the kernel's interrupt trap handler returns, it schedules the ISR in the SPB peripheral device driver to run at IRQL = PASSIVE_LEVEL. Starting with Windows 8, a UMDF driver can connect its ISR to an interrupt that the driver receives as an abstract Windows interrupt resource; for more information, see Handling Interrupts. To determine which ISR to call, the operating system looks up the virtual interrupt that is assigned to the interrupting GPIO pin and finds the ISR that is connected to the interrupt. This virtual interrupt is labeled as a secondary interrupt in the preceding diagram. In contrast, the hardware interrupt from the GPIO controller is labeled as a primary interrupt.

Because the ISR in the SPB peripheral device driver runs at passive level, the ISR can use synchronous I/O requests to access the hardware registers in the peripheral device. The ISR can block until these requests complete. The ISR, which runs at a relatively high priority, should return as soon as possible and defer all background processing for an interrupt to a worker routine that runs at a lower priority.

In response to the secondary interrupt, the SPB peripheral device driver posts an event in the sensor class extension, which notifies the user-mode application of the event through the Sensor API or Location API.

SPD USB Driver helps to detect any SPD powered phones to the computer without installing any ADB or any other driver packages. SPD driver is an essential program to upgrade, flash, update any SPD Smartphones, and Tablets. This is an official website where you can Download SPD Driver’s latest version for Windows computer. So, download the Spreadturm Driver latest 2020 version from below.

If you have any Spreadturm (Unisoc) powered Android smartphone or tablet and trying to connect it to the computer. This Spreadturm driver will help you to fix the problem in a few mins. Once you have installed SPD USB Driver on your PC then it will detect your smartphone and tablet to the computer for MTP, Charging, File Transfering, flashing flash file, Firmware Update, and Remove Screen & FRP lock.

SPD Driver Summaries

One-Click easy Installations

Here we share with you a one-click easy installation Spreadturm driver package to install the USB drivers on your pc without facing any error. just download the driver on your pc through the below download link and run to install the drivers on your computer. However, you can also find the manual installation drivers here.

Supported SPD flash tool

Once you have successfully installed SPD driver on your pc, then you can easily flash your SPD devices through SPD Flash Tool (Spreadtrum Flash Tool), it is fully compatible with any version of the SPD flash tool.

Manually installation

We have also manage to share here how to install Spreadturm driver manually on your pc. In case, if the above auto driver installer package not working for you, then you have to install the SPD USB driver manually. So, just download the manual version of the Driver and follow the below process to install it properly.

Supported Write IMEI Tool

It supports SPD Write IMEI tool also, which is helps you to repair IMEI and flash the IMEI on your SPD smartphones and tablets, it is fully compatible with any version of SPD Write IMEI tool.

Supported Professionals Boxes

It supports various Chinese professional box software like Miracle box, UMT SPD, Thunder, Madusa, Infinity dongle, Volcano, and many more professional boxes. which helps to flash, repair IMEI, unlock password, pattern, network locks on Spreadturm devices.

Supported SPD Research Download tool

It also helps to detect your phones in SPD Research Download Tool. So now you can easily flash or upgrade your phone without facing any error in the research download tool also.

System Compatibility:

Spreadturm USB driver supported all versions of the Windows operating system. (eg-windows 7, Windows 8, 8.1 Windows 10, Windows XP) both 32 bit and 64-bit version.

Supported Tools & Software

• SPD Research Download Tool
• Miracle Box Latest Setup
• GSM Aladdin
• UMT MTK Setup
• MRT Dongle
• Volcano Box
• Infinity-Box Tool
• GPG Dragon
• SPD Tools
• SPD FRP Tools
• Many more

Download (SPREADTURM) SPD All USB Drivers

Prerequisites

• A USB cable to connect your mobile to computer.
• Disable driver signature on If you have windows 8 or 10 based operating system.

How to install & use SPD USB Driver

• Download the driver on your computer first.

• After that, extract the driver on your pc.
• Then open the extracted folder and run the DPInst.exe from the extracted folder.

• Wait for a few seconds to launch the setup.
• Then install the setup from there.

• Once the installation process is completed then restart your windows once.

This is the easy way to install the USB driver on your pc easily if you are facing any errors while flashing these drivers on your pc then you can watch our installation video guides.

Manual Installation

If the above SPD auto-installer Driver package not working for you then you have to download Spreadtrum_usb_driver_20131114 instead of SPD auto installation package. In this situation, you have to install the USB Driver manually on your computer. So, follow the below process step by step carefully.

• First, download the manual installation driver files.
• Extract the USB driver files on your computer.
• Right-click on Start icon and open Device Manager.
• In Device Manager select Action.
• Select Add legacy hardware.
• You will get a popup window, click Next.
• Select the Install the hardware that I have manually select from a list (Advanced) and click Next.
• Select Show All Devices and click Next.
• Click Browse and give the file path of extracted USB driver folder and choose .inf file.
• Now click Open,
• Click Next to begin installing.
• Wait for finish.
• Click finish.
• Done.

Additional information:

The Third-Party INF Does Not Contain Digital Signature:

Usp Labs Drivers

If you facing digital signature errors while installingthe driver then follow the below steps first to fix the problem in a few seconds.

1. Run Command Prompt as Administrator Permission.
2. Then copy and paste the Code: bcdedit /set testsigning on
3. Restart your computer.
4. Now you can see “Test Mode” is enabled.
5. That’s it, Now install SPD USB Driver on your computer.

Splabs Dmx Usb Driver

How to Flash:

If you want to learn how to flash stock firmware files on SPD phones using SPD flash or Research download tool then you can check our detailed step by step guidelines to Flash Pac Flash file on SPD Android Phones properly.

Spreadturm Driver:

It’s mandatory to install Spreadturm Driver before you try to flash your SPD phones. make sure: spd driver is compatible only with SPD Android smartphones and tablets.

Credits:

SPD USB driver package and distributed by Spreadturm.Inc, but we repack it’s only for you. Thank you.