News Posts matching #USB 4.0

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Intel Submits USB4 Support to the Linux Kernel

As we are nearing the launch of USB4, which will feature Thunderbolt 3 like speeds of up to 40 Gbps, PCIe and DisplayPort support within USB-C form factor, there are already drivers showing up to support the new standard and ensure the launch and transition to the newest USB version will go smoothly.

According to the finds of Phoronix, Intel's open-source engineers have been working on a patch to support the new standard in the Linux kernel. Being based on Thunderbolt 3, the bring-up of USB4 isn't very difficult as it allows for a lot of code reuse, making things easier for kernel developers. Only 22 patches were submitted that resulted in under 4,000 lines of new code in total. For now, the support is in the stage of a pull request, so it should go mainstream very soon, most likely with the release of Linux kernel 5.5, if other features like power management are worked out soon.

USB-IF Announces Publication of USB4 Specification

USB Implementers Forum (USB-IF), the support organization for the advancement and adoption of USB technology, today announced the publication of the USB4 specification, a major update to deliver the next-generation USB architecture that complements and builds upon the existing USB 3.2 and USB 2.0 architectures. The USB4 architecture is based on the Thunderbolt protocol specification recently contributed by Intel Corporation to the USB Promoter Group. It doubles the maximum aggregate bandwidth of USB and enables multiple simultaneous data and display protocols.

The development of the USB4 specification was first announced in March 2019 by the USB Promoter Group. It is now officially published by USB-IF and available for download here.

Speeding Up your USB: USB 4.0 Products Expected to Appear by the end of 2020

AnandTech, who spoke with the USB Promoter Group at Computex, have shared that the new protocol is expected to manifest in physical, consumer products by the end of 2020. The specification for the next-generation bus is currently on version 0.7, with the USB Promoter Group expecting it to be finalized by this Summer. Then it's just a matter of manufacturers developing new products powered by the latest protocol.

USB 4.0 borrows heavily from Intel's thunderbolt 3 technology - which, if you'll remember, was made available as an open specification very recently. Intel's contribution of the Thunderbolt 3 protocol will enable USB 4.0 to achieve speeds of up to 40 Gbps with multiple data and display protocols being able to share available bandwidth. Additionally, USB 4.0 will make use of USB Type-C's interface, ensuring backwards compatibility not only with it, but also USB 2.0, USB 3.0 and Thunderbolt 3. Due to the many improvements in data transfer speeds and ability to stream multiple data and display protocols, the USB Promoter Group is looking at the possibility of changing USB's trademark logo for the next generation interface, alongside a revised branding scheme.
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