- Repeat the step on each USB root hub or do it only for USB ports that you want to be permanently powered on. If you experience lost USB connections or power from a USB port to your auxiliary device, try the steps above then idle the device and wait for a few minutes to confirm that the problem has gone away.
- Download ADB Drivers. HowTo Install ADB Drivers. Quick GALAXY Tab A (SM-T380) USB Drivers And ADB Driver Installation Guide. Step 1: Extract The Drivers File. Step 2: Run Setup File. Step 3: Click next and select your language. Step 4: Wait one minute. Step 5: Click Finish Button. Step 6: Now connect your Samsung Device. See full tutorial.
FTDI USB drivers (version 2.08.30) Note: since this is not signed, drivers will not install automatically in Windows Vista and Windows 7/8/10, let if fail when you connect it and then go to the device manager and choose to update drivers (right click on CANUSB). In Windows 8/10 you also need to read this post. Hybrid Blockchain technology enables security, high-speed, lower cost data communication on IoT devices. Strategic partnership with Toppan Forms, Keychain, and succeeded the first PoC. Apr 22, 2020 TOPPAN FORMS Acquires Green Printing Certification Contributing to environmental impact reduction at Takiyama Plant, a core plant of our company Apr. Immediately after booting WInows 10, I can insert a USB flash drive and it's recognized and assigned a device letter. However, it I remove it and insert it later, device manager shows missing device driver (code 28). Attempts to update the drive fail with no driver found.
-->Summary
- Guidelines for choosing the right programming model
- UWP app and desktop app developer experience
Important APIs
Examples Of Usb Devices
This topic provides guidelines for deciding whether you should write a UWP app or a Windows desktop app to communicate with a USB device.
Windows provides API sets that you can use to write apps that talk to a custom USB devices. The API performs common USB-related tasks such as, finding the device, data transfers.
'Custom device' in this context means, a device for which Microsoft does not provide an in-box class driver. Instead, you can install WinUSB (Winusb.sys) as the device driver.
Toppan Forms USB Devices Driver
Choosing a programming model
If you install Winusb.sys, here are the programming model options:
Windows 8.1 provides a new namespace: Windows.Devices.Usb. The namespace cannot be used in earlier version of Windows. Other Microsoft Store resources are here: UWP app.
Before Windows 8.1, apps that were communicating through Winusb.sys, were desktop apps written by using WinUSB Functions. In Windows 8.1, the API set has been extended. Other Windows desktop app resources are here: Windows desktop app.
The strategy for choosing the best programming model depends on various factors.
Will your app communicate with an internal USB device?
The APIs are primarily designed for accessing peripheral devices. The API can also access PC internal USB devices. However access to PC internal USB devices from a UWP app is limited to a privileged app that is explicitly declared in device metadata by the OEM for that PC.
Will your app communicate with USB isochronous endpoints?
If your app transmits data to or from isochronous endpoints of the device, you must write a Windows desktop app. In Windows 8.1, new WinUSB Functions have been added to the API set that allow a desktop app to send data to and receive data from isochronous endpoints.
Is your app a 'control panel' type of app?
UWP apps are per-user apps and do not have the ability to make changes outside the scope of each app. For these types of apps, you must write a Windows desktop app.
Is the USB device class supported classes by UWP apps?
Write a UWP app if your device belongs to one these device classes.
name:cdcControl, classId:02 * *
name:physical, classId:05 * *
name:personalHealthcare, classId:0f 00 00
name:activeSync, classId:ef 01 01
name:palmSync, classId:ef 01 02
name:deviceFirmwareUpdate, classId:fe 01 01
name:irda, classId:fe 02 00
name:measurement, classId:fe 03 *
name:vendorSpecific, classId:ff * *
Note If your device belongs to DeviceFirmwareUpdate class, your app must be a privileged app.
If your device does not belong to one the preceding device classes, write a Windows desktop app.
Driver requirement
Driver requirement | UWP app | Windows desktop app |
---|---|---|
Function driver | Microsoft-provided Winusb.sys (kernel-mode driver). | Microsoft-provided Winusb.sys (kernel-mode driver). |
Filter driver | If filter drivers are present, access is limited to privileged apps. The app is declared as privileged apps in device metadata by the OEM. | Filter driver can be present in the kernel mode device stack as long as it doesn't block access to Winusb.sys. |
Code samples
Sample | UWP app | Windows desktop app |
---|---|---|
Get started with these samples |
|
Development tools
Development tools | UWP app | Windows desktop app |
---|---|---|
Developer environment | Microsoft Visual Studio 2013 Microsoft Windows Software Development Kit (SDK) for Windows 8.1 | Use WinUSB Application template included with Visual Studio (Ultimate or Professional) and Windows Driver Kit (WDK) 8 Note For isochronous transfers, Visual Studio 2013 with Windows Driver Kit (WDK) 8.1 |
Programming languages | C#, VB.NET, C++, JavaScript | C/C++ |
Feature implementation
Key scenario | UWP app | Windows desktop app |
---|---|---|
Device discovery | Use Windows.Devices.Enumeration](/uwp/api/Windows.Devices.Enumeration)'>Windows.Devices.Enumeration namespace to get a UsbDevice](/uwp/api/Windows.Devices.Usb.UsbDevice)'>UsbDevice. | Use SetupAPI functions and WinUsb_Initialize](/windows/win32/api/winusb/nf-winusb-winusb_initialize)'>WinUsb_Initialize to get a WINUSB_INTERFACE_HANDLE. |
USB control transfer | ||
Getting USB descriptors | WinUsb_GetDescriptor](/windows/win32/api/winusb/nf-winusb-winusb_getdescriptor)'>WinUsb_GetDescriptor | |
Sending USB bulk transfer | ||
Sending USB interrupt transfer | ||
Sending USB isochronous transfer | Not supported. | |
Closing the device | UsbDevice.Close](/uwp/api/Windows.Devices.Usb.UsbDevice#Windows_Devices_Usb_UsbDevice_Close)'>UsbDevice.Close | WinUsb_Free](/windows/win32/api/winusb/nf-winusb-winusb_free)'>WinUsb_Free |
Documentation
Documentation | UWP app | Windows desktop app |
---|---|---|
Programming guide | Talking to USB devices, start to finish | How to Access a USB Device by Using WinUSB Functions |
API reference | Windows.Devices.Usb | WinUSB Functions |