Feeds

Intel releases USB 2.0 host interface spec.

Golly...

  • alert
  • submit to reddit

Intelligent flash storage arrays

Intel has published a single, unified spec. that will allow Microsoft, Apple, Red Hat, Sun and other OS makers to support USB 2.0 host controllers.

The specification, available on a royalty-free basis, essentially defines the way a host operating system talks to a computer's USB controller, and thus to any peripheral devices connected to it.

The new spec., called the Enhanced Host Controller Interface (EHCI), unifies the two alternative host controller interfaces developed with USB 1.0 and 1.1, which should simply OS' support for the connectivity standard. EHCI is compatible with USB 1.1 devices and hubs, even going so far as to work with existing device drivers.

That's done by supporting what Chipzilla calls USB 1.1 companion controllers, which leave the main USB 2.0 controller free to handle high-speed - ie. 400Mbps - bus traffic. That sounds suspiciously like a clever way of selling otherwise redundant USB 1.1 controller chips alongside the more up-to-date USB 2.0 versions.

And "the architecture is also highly optimised, and therefore consumes minimum CPU overhead - less than the amount that a USB 1.1 UHCI host controller consumes", Intel claims.

The next stage is to release compliance testing procedures, which will be released in the first half of next year, according to Intel. After that, it will publish the final version of EHCI. ®

Related Link

The EHCI spec. and licensing Ts&Cs can be found on Intel's USBWeb site.

Internet Security Threat Report 2014

Whitepapers

Go beyond APM with real-time IT operations analytics
How IT operations teams can harness the wealth of wire data already flowing through their environment for real-time operational intelligence.
10 threats to successful enterprise endpoint backup
10 threats to a successful backup including issues with BYOD, slow backups and ineffective security.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.