The output to one port is the input from other port and vice versa. The Null-modem emulator can be used to provide serial interface for device emulators. In this case the device emulation program uses one port of the pair and the other port can be used by Windows or DOS application that requires a COM port to communicate with the device.

In conjunction with the com0com driver the hub4com allows to - handle data and signals from a single real serial device by a number of different applications. For example, several applications can share data from one GPS device; - use real serial ports of remote computer like if they exist on the local computer. View Vyacheslav Frolov’s profile on LinkedIn, the world's largest professional community. Vyacheslav has 8 jobs listed on their profile. See the complete profile on LinkedIn and discover. Popular Hardware drivers Downloads. 01 Microsoft® ODBC Driver 13.1 for SQL Server® - Windows, Linux, & macOS. The Microsoft ODBC Driver for SQL Server provides native connectivity from Windows, Linux, & macOS to Microsoft SQL Server and Microsoft Azure SQL Database. All current software, firmware, and drivers for the Surface Pro 3. Posted by Vyacheslav Leave a comment on Installing and updating the ixgbe driver I will give an example of installing or updating ixgbe drivers on Linux. Let’s see the current version (for example, in Ubuntu Server 16.04 for HP 560SFP+, the ixgbe 4.2.1-k version was installed by default).

I will give an example of installing or updating ixgbe drivers on Linux.

Let’s see the current version (for example, in Ubuntu Server 16.04 for HP 560SFP+, the ixgbe 4.2.1-k version was installed by default):

Download the new drivers from the official site
https://downloadcenter.intel.com/download/14687/Intel-Network-Adapter-Driver-for-PCIe-Intel-10-Gigabit-Ethernet-Network-Connections-Under-Linux-
or
https://sourceforge.net/projects/e1000/files/ixgbe%20stable/

Or a patched version of the driver for the correct distribution of network board interruptions across the processor core when using QinQ
https://github.com/serhepopovych/ixgbe/tree/ixgbe-5.6.3/double-vlan

Or:

Install the necessary components in the system:

Using the commands below we install the driver, I note that if the Linux kernel has been updated, then we will reboot the server before installing the driver (the module is usually written in /lib/modules/KERNEL_VERSION/updates/drivers/net/ethernet/intel/ixgbe/ixgbe.ko):

The error below can be ignored, it just means that make cannot find the keys to sign the driver:

SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175

After installing the driver, any of the commands will unload the old driver module from memory:

And load the new one you just installed:

Check the version:

In order for Ubuntu to load a new driver at system startup, and not the old one, do:

For RedHat:

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If necessary, specify the network interface IP address (the name of the network interface can be seen, for example, in the logs by typing the command “dmesg -T”):

I note that on some versions of the drivers the occupied RAM space can quickly increase, usually it becomes noticeable in the graphs after a day or a week. Stable versions in which no memory leaks were noticed were 5.6.3 and 5.3.8.
If it grows, then you can, for example, unload and load the ixgbe module to understand if it has a problem (attention, the connection to the server will disappear):

To support third-party SFPs, you may have to load the module with the option:

So that when the system starts, the driver also loads with this option, we specify in the /etc/modprobe.d/ixgbe.conf file:

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And also in the file /etc/default/grub, specify:

Apply the changes:

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See also my article:
Intel i40e driver update
Configuring the Network in Linux
Distribution of network card interrupts across processor cores