IOCP (Input/output Completion Port) performs various asynchronous input/output operations in Windows NT versions of 3.5 and later, AIX and also on Solaris 10 as well as later, simultaneously. This IOCP is created as well as related to several sockets or file handles. When the services of input/output are asked for on an object, a message to IOCP indicates about the completion. This completion of I/O services is not notified about the process requesting for I/O services; however, in fact it checks the port message queue of I/O completion to inform about its I/O request status. The IOCP knows how to manage various threads along with their concurrency in the world of computers.
Here are manufacturers of Ports, drivers for which you can download on our website. 9654 drivers for 1341 devices from 84 manufacturers, you can download absolutely free of charge. Select the desired device, the manufacturer or the device ID.
For most devices, the Ports device setup class and the Serial function driver provide the functionality required to operate serial ports and COM ports. 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. Windows may install drivers for select devices, say the graphics card, under certain circumstances. This happens by default for instance when the device is setup, but may also happen when Microsoft pushes driver updates through Windows Updates. The serial port ttySx (x=0,1,2, etc.) is major number 4. You can see this (and the minor numbers too) by typing: 'ls -l ttyS.' in the /dev directory. To find the device names for various devices, see the 'devices' file in the kernel documentation. There formerly was a 'cua' name for each serial port and it behaved just a little differently. A USB Connector Manager Driver is required for Windows to manage the USB Type-C ports on a system. The bring-up tasks for a USB Connector Manager driver depend on the driver that you choose for the USB Type-C ports: The Microsoft in-box UCSI (UcmUcsiCx.sys and UcmUcsiAcpiClient.sys) driver, a UcmCx client driver, or a UcmTcpciCx client driver. Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions. Reinstall the device driver. In the search box on the taskbar, enter device manager, then select Device Manager. Right-click (or press and hold) the name of the device, and select Uninstall.

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# | Vendor | Device Name |
1 | Novatel | Dell Wireless 5720 Sprint Mobile Broadband (EVDO Rev-A) Minicard GPS Port |
2 | Qualcomm | Qualcomm HS-USB Diagnostics 9003 |
3 | Nokia | Port 4 on Nokia Adapter |
4 | ZTEMT | ZTE Diagnostics Port FFFE |
5 | Qualcomm | Qualcomm HS-USB AT Port 9003 |
6 | Hewlett Packard | Hp color laserjet 9500 mfp (dot4) |
7 | Nokia | Nokia 8800 Arte USB |
8 | Qualcomm | Qualcomm HS-USB QDLoader 9211 |
9 | LINDY Co., Ltd. | PCI EPP/ECP Parallel Port |
10 | Media Tek Inc. | 6218 USB Modem Driver |
11 | Nokia | Nokia 5630 XpressMusic USB |
12 | Hewlett Packard | Hp officejet enterprise color flow mfp x585 (dot4par) |
13 | Option | Globetrotter icon401 - application interface |
14 | Silicon Laboratories | Silicon Labs Quad CP210x USB to UART Bridge: Interface 2 |
15 | Qualcomm | Qualcomm Gobi2000 HS-USB QDLoader 9214 |
16 | Hewlett Packard | Hp laserjet enterprise 700 color mfp m775 (dot4par) |
17 | Novatel | Novatel Wireless Expedite HSDPA Diagnostics Port |
18 | FTDI | USB KL Interface VCP |
19 | ZTE | ZTE CDMA NMEA Interface |
20 | Novatel | Novatel Wireless Expedite EV-DV Diagnostics Port |