USB Suspend Changes Coming For The Linux 4.5 Kernel
Written by Michael Larabel in Hardware on 21 January 2016 at 01:05 PM EST. 1 Comment
HARDWARE --
A second feature pull has been submitted of ACPI and power management material for the Linux 4.5 kernel merge window.

Landing last week was already the big ACPI+PM pull request for Linux 4.5 while submitted yesterday was some extra feature material for this kernel cycle with the merge window not closing until Sunday.

This second serving of power management changes for Linux 4.5 isn't as exciting as the first one, but there is one feature that sticks out. With this new code, if a USB device is suspended, it will now stay suspended across system suspend/resume cycles. Previously, the suspended USB device would have waken up automatically when the system resumed, but now it's tracked to not resume if the USB device was already suspended prior to the system suspend. There's also been some fixes around this suspended code.

Other work includes updating ACPICA, fixing a CPU idle menu governor regression, more ACPI backlight quirks, and various fixes. More details via this pull request by Intel's Rafael Wysocki.
About The Author
Author picture

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

Related Hardware News
Popular News