USB 4.0 is being prepared to hit the tech market, according to the website Phoronix. On Tuesday of this week, Intel sent the necessary documentation to enable support of the USB 4.0 connection standard in the Linux operating system kernel. This means that the new generation of connectors is just a few steps from their official launch in the market.
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The Universal Serial Bus (USB) protocol was created in 1996, the first version supported the maximum of 12Mbps, a considerable difference from USB 2.0, released in the year 2000 with a maximum speed of 480Mbps. For version 4.0 expected the speed is up to 40Gbps, reaching the level of what currently offers the standard Thunderbolt 3.
The news should also bring new adaptations to the USB Type-C format, with support for PCIe and DisplayPort interfaces. Features such as support for up to 2 4K displays and a 5K display are expected, as well as up to 100W charging.
So that everything goes as expected and engineers can work on format compatibility and standardization smoothly, Intel is submitting these documentation and preparing support drivers.
Despite all the preparation path, precisely because it is based on Thunderbolt 3 technology, USB 4.0 must face a smoother path of adaptation going forward. Much of the Thunderbolt driver code can be reused, reducing the time kernel developers will have to deal with.
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To date, 22 patches have been submitted and add up to a total of 4,000 lines of new codes. The driver is already in the pull request phase, which means that it will appear right in the mainstream area of the system, it seems to occur at the 5.5 kernel release. This requires, however, features such as power management to be working properly.
Source: Adrenaline, Phoronix. (TagsToTranslate) usb (t) usb 4 (t) usb 4.0 (t) technology