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Some devices will only connect to your computer using a port called 'RS232 Serial Port'. This port was used on old computers before 2003. RS232 was the universal/popular port back in the old days just like USB is today. First step: right click on the “USB Serial Port” device and click “Properties.” Next, click on the “Port Settings” tab at the top of the Window. Next click the “Advanced” button. On this screen, there are several things to change. This tab is used to assign a driver to an IR port, and choose the device functions for the selected port. Buttons for the selected functions are displayed and usable in the GlobalViewer ® interface. If you change the port to be a serial port, the Serial Configuration tab opens, allowing you to associate a serial driver.
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The higher-level driver of a class/port pair can sometimes complete IRPs in its DispatchDeviceControl routine. For example a class driver could, during initialization, gather and store information about the features of the underlying device, which might be sought in a subsequent IRP_MJ_DEVICE_CONTROL request, and thus save processing time by satisfying the request without passing it on to the underlying device driver. A class driver might also be designed to check the IRP's parameters and send only requests with valid parameters to the port driver.
Closely coupled class/port drivers also can define a set of driver-specific or device-specific internal I/O control codes that the class driver can use for IRP_MJ_INTERNAL_DEVICE_CONTROL requests to the port driver.
For example, the DispatchCreateClose routines in the system keyboard and mouse class drivers send system-defined internal device control requests to enable or disable keyboard and mouse interrupts to the underlying port drivers. These system class drivers set up IRP_MJ_INTERNAL_DEVICE_CONTROL requests for an underlying port driver. Any new keyboard or mouse port driver that interoperates with these system class drivers also must support these public internal device control requests.
The system parallel class/port driver model has similar features. New parallel class drivers can get support from the system parallel port driver by setting up IRPs for IRP_MJ_INTERNAL_DEVICE_CONTROL requests with public IOCTL_PARALLEL_PORT_XXX control codes. You can replace the system parallel port driver, but any new driver also must support this set of public internal device control requests.
For more information about these public internal device control requests, see device-specific documentation in the Windows Driver Kit (WDK). For information about how to define private I/O control codes, see Using I/O Control Codes.
For a closely coupled pair of port/class drivers, the class driver might handle the processing of certain device control requests without passing them on to the port driver. In a new class/port driver pair, the class driver's DispatchDeviceControl routine can do either of the following:
Check the validity of the parameters in its own I/O stack location, set the I/O status block if it finds any parameter errors, and call IoCompleteRequest with a PriorityBoost of IO_NO_INCREMENT; otherwise, call IoGetNextIrpStackLocation copy its own I/O stack location into the port driver's, and pass the IRP on with IoCallDriver.
Or, do nothing more than set up the port driver's I/O stack location in the IRP without checking parameters and pass it on to the port driver for processing.
SCSI class drivers have special requirements for handling device control requests. For more information about these requirements, see Storage Drivers.
Category: Network and modem
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Windows device driver information for COM Port G
The COM Port G falls under the category Network and Modem. On computer and telecommunication devices, a port is generally a specific place to be used for physically connecting to some other device like a socket and plug. A personal computer is typically provided with one or more serial ports and usually one parallel port. Serial ports support sequential and one bit-at-a-time transmission to peripheral devices such as scanners. Parallel ports support multiple-bit-at-a-time transmission to devices such as printers. In programming, a port is a 'logical connection place.' Specifically, it uses the Internet's protocol, TCP/IP. Higher-level applications that use TCP/IP have ports with pre-assigned numbers. Other application processes are given port numbers for each connection. When a server program is started, it is said to bind to its designated port number. If a client program wants to use that server, it also must request to bind to the designated port number.
Outdated Drivers?
Unless you update your drivers regularly you may face hardware performance issues.
Stallion Port Devices Driver Updater
To check your drivers you should manually verify every device on your system for driver updates
Stallion Port Devices Driver Windows 7
A computer network allows computers to communicate with other computers. Networks allow computer users to share resources and information. Computer networks can be classified according to the hardware and software technology used. These technologies include Optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn. Ethernet uses physical wiring to connect devices. The COM Port G is a modulator-demodulator, or in short, a modem. It enables computers to transmit data over cable lines or telephone lines. Since computer data is stored in digital format, they cannot be transferred over to other devices on a network using analog signals. They need to be decoded into analog signals and back to digital format. Such is the function of a modem. These types of devices can enable data from a computer to be sent over through telephone or cable lines and allow other devices to receive the original data. It is highly recommended you run a free registry scan for Windows and COM Port G errors before installing any driver updates.