Shulou(Shulou.com)05/31 Report--

This article mainly introduces what driver subsystem has been added to the Linux 4.3 kernel, which can be used for reference by interested friends. I hope you will gain a lot after reading this article.

Before the Linux 4.2 kernel was officially released, Greg Kroah-Hartman opened a merge window for Linux 4.3 for the various subsystem modules he maintained.

The previous pull request (pull request) initiated by Greg KH included a merge window update for linux 4.3, covering the driver core, TTY/ serial port, USB driver, character / miscellaneous, and temporary storage content. These pull requests do not provide any shocking changes, most of which are improvements / additions / modifications to the bug. The content of the temporary storage area is a lot of correction and cleaning, but there is still a new driver subsystem.

Greg mentioned the Linux 4.3 staging area change. "A lot of things here, almost all of them are minor modifications and changes. The usual IIO updates and new drivers, as well as the MOST driver subsystem we have added, have been sorted out in the source tree. The ozwpan driver was eventually deleted because it was obviously abandoned and no one cared about it."

MOST driver subsystem is the abbreviation of Media-oriented system Transmission (Media Oriented Systems Transport). The MOST driver enables LInux applications to access the MOST network: the Automotive Information backbone (Automotive Information Backbone), the de facto standard for high-speed automotive multimedia networks, as explained in the new linux 4.3 documentation. MOST defines the necessary protocol, hardware, and software layers to provide efficient and low-cost transmission control and real-time packet transmission, using only one medium (physical layer). The media currently used are light, unshielded twisted pair (UTP) and coaxial cable. MOST also supports multiple transmission speeds, and * * supports 150Mbps. " As explained in the document, MOST is mainly about the application of Linux in cars.

When Greg KH released the updates he made for more than one of the Linux 4.3 subsystems, he was not ready to submit the kernel code for KDBUS. He has previously released a development plan for [KDBUS for linux 4.3], so we will need to wait for the official 4.3 merge window to see what happens.

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