Download Realtek USB Card Reader Driver 10.0.4. OS support: Windows (all). Category: Input Devices. The latest version Silicon labs driver cp210x USB to UART Bridge driver does not work (will not install) on Windows 10 build 1903. The older driver (6.7.4.261) installs and works fine on the same machine running Windows 10 build 1803. I am trying to communicate with an ESP32 development board that has Sil Labs USB to Serial chip.
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-->A Universal Serial Bus (USB) device defines its capabilities and features through configurations, interfaces, alternate settings, and endpoints. This topic provides a high-level overview of those concepts. For details, see the USB specifications at Universal Serial Bus Documents.
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In this section
| Topic | Description |
|---|---|
A USB device defines its capabilities and features through configurations, interfaces, alternate settings, and endpoints. This topic provides a high-level overview of those concepts. | |
A USB device provides information about itself in data structures called USB descriptors. This section provides information about device, configuration, interface, and endpoint descriptors and ways to retrieve them from a USB device. | |
A USB device has endpoints that are used to for data transfers. On the host side, endpoints are represented by pipes. This topic differentiates between those two terms. | |
This topic presents frequently asked questions for driver developers who are new to developing and integrating USB devices and drivers with Windows operating systems. |
Common USB scenarios
1—Get the device handle for communication and use the retrieved handle or object to send data transfers.
| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: WdfUsbTargetDeviceCreateWithParameters](/windows-hardware/drivers/ddi/wdfusb/nf-wdfusb-wdfusbtargetdevicecreatewithparameters)'>WdfUsbTargetDeviceCreateWithParameters UMDF: IWDFUsbTargetDevice](/windows-hardware/drivers/ddi/wudfusb/nn-wudfusb-iwdfusbtargetdevice)'>IWDFUsbTargetDevice | How to connect to a USB device (UWP app). | See Write a Windows desktop app based on the WinUSB template. |
USB descriptor retrieval to get information about the device's configuration(s), interface(s), setting(s), and their endpoint(s).
| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: UMDF: See USB descriptors. | How to get USB descriptors (UWP app). | See Query the Device for USB Descriptors. |
2—Configure the device to select an active USB configuration and setting per interface.
| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: See How to select a configuration for a USB device. See How to select an alternate setting in a USB interface. UMDF: Configuration selection is not Supported. | How to select a USB interface setting (UWP app). | WinUsb_SetCurrentAlternateSetting](/windows/win32/api/winusb/nf-winusb-winusb_setcurrentalternatesetting)'>WinUsb_SetCurrentAlternateSetting |
3—Send control transfers for configuring the device and performing vendor commands that are specific to particular device.
| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: UMDF: See How to send a USB control transfer. | How to send a USB control transfer (UWP app). | See Send Control Transfer to the Default Endpoint. |
4—Send bulk transfers, typically used by mass storage devices that transfer large amount of data.
| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: How to use the continuous reader for reading data from a USB pipe. UMDF: | How to send a USB bulk transfer request (UWP app). | See Issue I/O Requests. |
5—Send interrupt transfers. Data is read to retrieve hardware interrupt data.
| Client driver | UWP app | Windows desktop app |
|---|---|---|
Same as bulk transfers. | How to send a USB interrupt transfer request (UWP app). | Same as bulk transfers. |
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6—Send isochronous transfers, mostly used for media streaming devices.
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| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: See How to transfer data to USB isochronous endpoints. UMDF: Not supported. | Not supported. | See Sending USB isochronous transfers from a WinUSB desktop app. |
7—USB selective suspend to allow the device to enter a low power state and bring the device back to working state.
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| Client driver | UWP app | Windows desktop app |
|---|---|---|
KMDF: UMDF: See How to send a device to selective suspend. | Not supported. | See WinUSB Power Management. |
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