Drivers Digit@lway USB Devices

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  1. Drivers Digit@lway Usb Devices Adapter
  2. Drivers Digit@lway Usb Devices Dongle
  3. Drivers Digit@lway Usb Devices Pc Camera
  4. Drivers Digit@lway Usb Devices Wireless Adapter
  5. Drivers Digit@lway USB Devices

Windows comes with drivers for many devices, such as printers, displays, keyboards, and TVs. A driver is software that a device uses to work with your PC. Every device needs a driver to work with your PC. So, in many cases, you can plug in a device, and it’ll work automatically.

Device ID Device Name More; USB: 2375: Digit@lway, Inc. 0001: Digital Audio Player: Vendor Device.

Improvements and fixes. This update includes a fix for an incorrect device driver (“Microsoft – WPD – 2/22/2016 12:00:00 AM - 5.2.5326.4762”) that was released by a third-party on March 8, 2017 that affected a small group of users with USB connected phones or other media devices that rely on Media Transfer Protocol (MTP). With “USB Debugging” turned on, connect your device to the computer via USB. In the DroidCam PC client, pick the USB connection option and click the refresh button. The client will try to detect connected devices. If the client detects your phone, you’ll likely get a dialog on the phone asking Allow USB Debugging, you need to tap OK.

Windows can also download device software and info. This might include an app that the device manufacturer created to go with your device or info like the product name, manufacturer, and model number, to help you distinguish between similar devices.

Drivers are updated occasionally. Windows can update them automatically, or you can install the updated drivers yourself. It's important for you to have confidence in the updated drivers you install. Windows notifies you if it detects a suspicious or unsafe driver you shouldn't install.

Automatically get the latest drivers and software

Windows Update checks for updated drivers and software for your devices and install them automatically. Keeping Windows Update on is a good way to make sure your devices continues to work properly and you get the best experience with them.

Note: PCs running Windows RT 8.1 always automatically download and install drivers, apps, and info for your devices.

To check that automatic updating is on

  1. Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings. (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)

  2. Tap or click Update and recovery, and then tap or click Windows Update.

  3. Tap or click Choose how updates get installed.

  4. Under Important updates, choose Install updates automatically (recommended).

Installing drivers yourself

If your device came with a disc, it might contain software that installs a driver. Before you install a driver from a disc, check the info that comes with it to be sure it supports your current version of Windows.

You can also search for new drivers on the manufacturer's website. Driver updates are often available in the support section of their website. Download the latest driver for your device, and follow the installation instructions on the website. You can usually double-tap or double-click the downloaded file to install the driver on your PC.

If the driver you got from a disc or downloaded from a website doesn't install itself, you might need to install manually.

To manually install a driver

You must be signed in as an administrator to follow these steps.

  1. Swipe in from the right edge of the screen, and then tap Search. (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)

  2. Enter Device Manager in the search box, and tap or click Device Manager.

  3. In the list of hardware categories, double-tap or double-click the category your device is in and then double-tap or double-click the device you want. For example, to see your video card, tap or click Display adapters, and then double-tap or double-click the video card name.

  4. Tap or click the Driver tab, tap or click Update Driver, and then follow the instructions. You might be asked for an admin password or to confirm your choice.

Notifications telling you about unsafe drivers

Occasionally, you might see a notification that a driver is unsigned, has been changed since it was signed, or can't be installed by Windows. We recommend that you don't install unsigned or changed drivers.

A digitally signed driver includes a digital signature, which is an electronic security mark that indicates the publisher of software and whether someone has tampered with it since it was signed. If a driver has been signed by a publisher that has verified its identity with a certification authority, you can be confident that the driver comes from that publisher and hasn't been changed.

If you see any of the following notifications when you're installing a driver, you should stop the installation and go to your device manufacturer's website to get a digitally signed driver for your device.

Windows can't verify the publisher of this driver software

Drivers Digit@lway Usb Devices Adapter

The driver doesn't have a digital signature or has been signed with a digital signature that wasn't verified by a certification authority. You should only install this driver if you got it from the manufacturer's disc or from your system administrator.

This driver hasn't been signed

The driver hasn't been digitally signed by a verified publisher. The driver might have been changed to include malware that could harm your PC or steal info. In rare cases, legitimate publishers do change drivers after they've been digitally signed, but you should only install an unsigned driver if you got it from a device manufacturer's disc.

Unfortunately, there's no trustworthy source of info that indicates who has published an unsigned driver. Anyone can change the contents of an unsigned driver, and there's no way to know why it was changed. Most manufacturers now digitally sign the drivers they create before releasing them to the public.

Windows requires a digitally signed driver

A driver that lacks a valid digital signature, or has a signature that was changed after it was signed, can't be installed on 64-bit versions of Windows. You'll only see this notification if you have a 64-bit version of Windows and try to install such a driver on it.

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Summary

  • Opening the device and obtaining WinUSB handle.
  • Getting information about the device, configuration, and interface settings of all interfaces, and their endpoints.
  • Reading and writing data to bulk and interrupt endpoints.

Important APIs

This topic includes a detailed walkthrough of how to use WinUSB Functions to communicate with a USB device that is using Winusb.sys as its function driver.

If you are using Microsoft Visual Studio 2013, create your skeleton app by using the WinUSB template. In that case, skip steps 1 through 3 and proceed from step 4 in this topic. The template opens a file handle to the device and obtains the WinUSB handle required for subsequent operations. That handle is stored in the app-defined DEVICE_DATA structure in device.h.

For more information about the template, see Write a Windows desktop app based on the WinUSB template.

Note WinUSB functions require Windows XP or later. You can use these functions in your C/C++ application to communicate with your USB device. Microsoft does not provide a managed API for WinUSB.

Prerequisites

The following items apply to this walkthrough:

  • This information applies to Windows 8.1, Windows 8, Windows 7, Windows Server 2008, Windows Vista versions of Windows.
  • You have installed Winusb.sys as the device's function driver. For more information about this process, see WinUSB (Winusb.sys) Installation.
  • The examples in this topic are based on the OSR USB FX2 Learning Kit device. You can use these examples to extend the procedures to other USB devices.

Step 1: Create a skeleton app based on the WinUSB template

To access a USB device, start by creating a skeleton app based on the WinUSB template included in the integrated environment of Windows Driver Kit (WDK) (with Debugging Tools for Windows) and Microsoft Visual Studio.You can use the template as a starting point.

For information about the template code, how to create, build, deploy, and debug the skeleton app, see Write a Windows desktop app based on the WinUSB template.

The template enumerates devices by using SetupAPI routines, opens a file handle for the device, and creates a WinUSB interface handle required for subsequent tasks. For example code that gets the device handle and opens the device, see Template code discussion.

Step 2: Query the Device for USB Descriptors

Drivers Digit@lway Usb Devices Dongle

Next, query the device for USB-specific information such as device speed, interface descriptors, related endpoints, and their pipes. The procedure is similar to the one that USB device drivers use. However, the application completes device queries by calling WinUsb_GetDescriptor.

The following list shows the WinUSB functions that you can call to get USB-specific information:

  • Additional device information.

    Call WinUsb_QueryDeviceInformation to request information from the device descriptors for the device. To get the device's speed, set DEVICE_SPEED (0x01) in the InformationType parameter. The function returns LowSpeed (0x01) or HighSpeed (0x03).

  • Interface descriptors

    Call WinUsb_QueryInterfaceSettings and pass the device's interface handles to obtain the corresponding interface descriptors. The WinUSB interface handle corresponds to the first interface. Some USB devices, such as the OSR Fx2 device, support only one interface without any alternative setting. Therefore, for these devices the AlternateSettingNumber parameter is set to zero and the function is called only one time. WinUsb_QueryInterfaceSettings fills the caller-allocated USB_INTERFACE_DESCRIPTOR structure (passed in the UsbAltInterfaceDescriptor parameter) with information about the interface. For example, the number of endpoints in the interface is set in the bNumEndpoints member of USB_INTERFACE_DESCRIPTOR.

    For devices that support multiple interfaces, call WinUsb_GetAssociatedInterface to obtain interface handles for associated interfaces by specifying the alternative settings in the AssociatedInterfaceIndex parameter.

  • Endpoints

    Call WinUsb_QueryPipe to obtain information about each endpoint on each interface. WinUsb_QueryPipe populates the caller-allocated WINUSB_PIPE_INFORMATION structure with information about the specified endpoint's pipe. The endpoints' pipes are identified by a zero-based index, and must be less than the value in the bNumEndpoints member of the interface descriptor that is retrieved in the previous call to WinUsb_QueryInterfaceSettings. The OSR Fx2 device has one interface that has three endpoints. For this device, the function's AlternateInterfaceNumber parameter is set to 0, and the value of the PipeIndex parameter varies from 0 to 2.

    To determine the pipe type, examine the WINUSB_PIPE_INFORMATION structure's PipeInfo member. This member is set to one of the USBD_PIPE_TYPE enumeration values: UsbdPipeTypeControl, UsbdPipeTypeIsochronous, UsbdPipeTypeBulk, or UsbdPipeTypeInterrupt. The OSR USB FX2 device supports an interrupt pipe, a bulk-in pipe, and a bulk-out pipe, so PipeInfo is set to either UsbdPipeTypeInterrupt or UsbdPipeTypeBulk. The UsbdPipeTypeBulk value identifies bulk pipes, but does not provide the pipe's direction. The direction information is encoded in the high bit of the pipe address, which is stored in the WINUSB_PIPE_INFORMATION structure's PipeId member. The simplest way to determine the direction of the pipe is to pass the PipeId value to one of the following macros from Usb100.h:

    • The USB_ENDPOINT_DIRECTION_IN (PipeId) macro returns TRUE if the direction is in.
    • The USB_ENDPOINT_DIRECTION_OUT(PipeId) macro returns TRUE if the direction is out.

    The application uses the PipeId value to identify which pipe to use for data transfer in calls to WinUSB functions, such as WinUsb_ReadPipe (described in the 'Issue I/O Requests' section of this topic), so the example stores all three PipeId values for later use.

The following example code gets the speed of the device that is specified by the WinUSB interface handle.

The following example code queries the various descriptors for the USB device that is specified by the WinUSB interface handle. The example function retrieves the types of supported endpoints and their pipe identifiers. The example stores all three PipeId values for later use.

Step 3: Send Control Transfer to the Default Endpoint

Next, communicate with the device by issuing control request to the default endpoint.

All USB devices have a default endpoint in addition to the endpoints that are associated with interfaces. The primary purpose of the default endpoint is to provide the host with information that it can use to configure the device. However, devices can also use the default endpoint for device-specific purposes. For example, the OSR USB FX2 device uses the default endpoint to control the light bar and seven-segment digital display.

Control commands consist of an 8-byte setup packet, which includes a request code that specifies the particular request, and an optional data buffer. The request codes and buffer formats are vendor defined. In this example, the application sends data to the device to control the light bar. The code to set the light bar is 0xD8, which is defined for convenience as SET_BARGRAPH_DISPLAY. For this request, the device requires a 1-byte data buffer that specifies which elements should be lit by setting the appropriate bits.

The application can set this through the user interface (UI), such as by providing a set of eight check box controls to specify which elements of the light bar should be lit. The specified elements correspond to the appropriate bits in the buffer. To avoid UI code, the example code in this section sets the bits so that alternate lights get lit up.

Use the following steps to issue a control request.

  1. Allocate a 1-byte data buffer and load the data into the buffer that specifies the elements that should be lit by setting the appropriate bits.

  2. Construct a setup packet in a caller-allocated WINUSB_SETUP_PACKET structure. Initialize the members to represent the request type and data as follows:

    • The RequestType member specifies request direction. It is set to 0, which indicates host-to-device data transfer. For device-to-host transfers, set RequestType to 1.
    • The Request member is set to the vendor-defined code for this request, 0xD8. It is defined for convenience as SET_BARGRAPH_DISPLAY.
    • The Length member is set to the size of the data buffer.
    • The Index and Value members are not required for this request, so they are set to zero.

  3. Call WinUsb_ControlTransfer to transmit the request to the default endpoint by passing the device's WinUSB interface handle, the setup packet, and the data buffer. The function receives the number of bytes that were transferred to the device in the LengthTransferred parameter.

The following code example sends a control request to the specified USB device to control the lights on the light bar.

Step 4: Issue I/O Requests

Next, send data to the device's bulk-in and bulk-out endpoints that can be used for read and write requests, respectively. On the OSR USB FX2 device, these two endpoints are configured for loopback, so the device moves data from the bulk-in endpoint to the bulk-out endpoint. It does not change the value of the data or add any new data. For loopback configuration, a read request reads the data that was sent by the most recent write request. WinUSB provides the following functions for sending write and read requests:

To send a write request

  1. Allocate a buffer and fill it with the data that you want to write to the device. There is no limitation on the buffer size if the application does not set RAW_IO as the pipe's policy type. WinUSB divides the buffer into appropriately sized chunks, if necessary. If RAW_IO is set, the size of the buffer is limited by the maximum transfer size supported by WinUSB.
  2. Call WinUsb_WritePipe to write the buffer to the device. Pass the WinUSB interface handle for the device, the pipe identifier for the bulk-out pipe (as described in the Query the Device for USB Descriptors section of this topic), and the buffer. The function returns the number of bytes that are actually written to the device in the bytesWritten parameter. The Overlapped parameter is set to NULL to request a synchronous operation. To perform an asynchronous write request, set Overlapped to a pointer to an OVERLAPPED structure.

Write requests that contain zero-length data are forwarded down the USB stack. If the transfer length is greater than a maximum transfer length, WinUSB divides the request into smaller requests of maximum transfer length and submits them serially.The following code example allocates a string and sends it to the bulk-out endpoint of the device.

Drivers

To send a read request

  • Call WinUsb_ReadPipe to read data from the bulk-in endpoint of the device. Pass the WinUSB interface handle of the device, the pipe identifier for the bulk-in endpoint, and an appropriately sized empty buffer. When the function returns, the buffer contains the data that was read from the device. The number of bytes that were read is returned in the function's bytesRead parameter. For read requests, the buffer must be a multiple of the maximum packet size.

Zero-length read requests complete immediately with success and are not sent down the stack. If the transfer length is greater than a maximum transfer length, WinUSB divides the request into smaller requests of maximum transfer length and submits them serially. If the transfer length is not a multiple of the endpoint's MaxPacketSize, WinUSB increases the size of the transfer to the next multiple of MaxPacketSize. If a device returns more data than was requested, WinUSB saves the excess data. If data remains from a previous read request, WinUSB copies it to the beginning of the next read request and completes the request, if necessary.The following code example reads data from the bulk-in endpoint of the device.

Step 5: Release the Device Handles

After you have completed all the required calls to the device, release the file handle and the WinUSB interface handle for the device. For this, call the following functions:

  • CloseHandle to release the handle that was created by CreateFile, as described in the step 1.
  • WinUsb_Free to release the WinUSB interface handle for the device, which is returned by WinUsb_Initialize.

Step 6: Implement Main

The following code example shows the main function of your console application.

Next steps

If your device supports isochronous endpoints, you can use WinUSB Functions to send transfers. This feature is only supported in Windows 8.1.

Drivers Digit@lway Usb Devices Pc Camera

For more information, see Send USB isochronous transfers from a WinUSB desktop app.

Drivers Digit@lway Usb Devices Wireless Adapter

Related topics

Drivers Digit@lway USB Devices

WinUSB
WinUSB Architecture and Modules
WinUSB (Winusb.sys) Installation
WinUSB Functions for Pipe Policy Modification
WinUSB Power Management
WinUSB Functions
Write a Windows desktop app based on the WinUSB template