The USB to Serial RS-232 Adapter provides one RS-232 Serial (DB-9 male) connector via one standard USB port at a data transfer rate of up to 230Kbps. You can instantly enjoy connectivity with modem, PDA, POS, or other serial devices on your PC or Mac without the hassle of opening your computer case. Download the latest drivers, firmware, and software for your HP USB to Serial Port Adapter.This is HP’s official website that will help automatically detect and download the correct drivers free of cost for your HP Computing and Printing products for Windows and Mac operating system. Starting in Windows 10, Usbser.sys supports USB Selective Suspend. It allows the attached USB-to-serial device to enter a low power state when not in use, while the system remains in the S0 state. When communication with the device resumes, the device can leave the. On your desktop, right-click on the Start button, then select Device Manager. Double-click Ports (COM & LPT), then right-click on your Prolific USB to Serial driver to select Update driver. Click Browse my computer for driver software. Select Let me pick from a list of available drivers on my computer. To install serial ports and COM ports using these system-supplied components, do the following: Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port. To configure a serial port as COM port, comply with the requirements that are defined in Configuration of COM Ports.
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 FAQFrequently asked questions from driver developers about the USB stack and features that are supported in USB. Microsoft OS Descriptors for USB DevicesWindows defines MS OS descriptors that allows better enumeration when connected to system running Windows operating system Microsoft-provided USB driversUSB device-side drivers in WindowsA set of drivers for handling common function logic for USB devices. USB host-side drivers in WindowsMicrosoft provides a core stack of drivers that interoperate with devices that are connected to EHCI and xHCI controllers. USB-IF device class driversWindows provides in-box device class drivers for many USB-IF approved device classes, audio, mass storage, and so on. USB generic function driver–WinUSBWindows 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–UsbccgpParent 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
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 SpecificationProvides complete technical details for the USB protocol. Microsoft Windows USB Core Team BlogCheck 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 - ntdevDiscussion list managed by OSR Online for kernel-mode driver developers. Windows Dev-Center for Hardware DevelopmentMiscellaneous 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 devicesMUTT 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 KitIf 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 driverIf 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.
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 driverWindows 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 driverUSB 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 devicesWindows 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 appProvides 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 appDescribes how an application can call WinUSB Functions to communicate with a USB device. WinUSB functions Common programming scenariosComic book reader for mac free download. 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 |
Fail to connect your devices with Windows 10 using the Prolific USB to Serial adapter cable? Besides, you might notice there’s a yellow warning mark with Prolific USB to Serial driver in Device Manager. That could be really frustrating…
Don’t panic. Certainly you’re not the only one. We’ve seen many Windows users reporting this Prolific USB to Serial driver not working on Windows 10 issue. More importantly, you can easily fix it with the solutions here. Read on and see how…
Try these fixes:
Solution 1: Update your Prolific USB to Serial driver to the latest version
Your not working Prolific USB to Serial driver problem could be caused by the corrupted, missing or outdated driver itself. So it would help if you update the driver to the latest version.
You can update your Prolific USB to Serial driver to the latest version either manually or automatically.
- Manual driver update – You can update your Prolific USB to Serial driver manually by going to the official Prolific website, and searching for the most recent correct driver. Be sure to choose the only driver that is compatible with your Windows version.
- Automatic driver update – If you don’t have the time, patience or computer skills to update your Prolific USB to Serial driver manually, you can, instead, do it automatically with Driver Easy. Driver Easy will automatically recognize your system and find the correct driver for your exact Prolific adapter, and your Windows version, and it will download and install them correctly:
Download and install Driver Easy.
Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.
Click Update next to the flagged Prolific USB to Serial driver to automatically download the correct version of that driver, then you can manually install it (you can do this with the FREE version).
Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system. (This requires the Pro version which comes with full support and a 30-day money back guarantee. You’ll be prompted to upgrade when you click Update All.)
Solution 2: Roll your Prolific USB to Serial driver back to an older version
You may note that up-to-date drivers always keep your devices works in the best condition. But sometimes the latest driver doesn’t work with old hardware.
When you upgrade your older Windows system to the latest Windows 10, or perform updates directly on Windows 10, the Prolific USB to Serial driver also gets update, and if it doesn’t work with your old hardware, you might have the problem. So you can try to downgrade your Prolific USB to Serial driver.
Here’s how you can do it:
On your desktop, right-click on the Start button, then select Device Manager.
Double-click Ports(COM & LPT), then right-click on your Prolific USB to Serial driver to select Update driver.
Click Browse my computer for driver software.
Select Let me pick from a list of available drivers on my computer.
Select an older version on the Model list. Then Next.
Then the driver you select would be installed on your Windows 10 computer automatically.
Usb Serial Port Driver For Windows 10
Once it’s done, connect your device again and see if it goes well.
Usb To Serial Driver For Windows 10 Pro
Hopefully this helps. Feel free to comment below with your own experiences.