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Linux 3.9 Brings Zero-Power Optical Device Driver

Linux Kernel

Published on 23 February 2013 07:32 AM EST
Written by Michael Larabel in Linux Kernel
5 Comments

With the ATA pull for the Linux 3.9 kernel finally comes ZPODD, the Zero-Power Optical Device Driver.

I first wrote about ZPODD support on Linux last May in Better Power Savings With ZPODD On Linux. The Zero-Power Optical Disk Drive is a feature of the Serial ATA 3.1 specification that allows for idle SATA optical disk drives to zero out their energy use if it's not being utilized, thus better energy efficiency on Linux.

It's taken a while, but with the Linux 3.9 kernel the Zero-Power Optical Device Driver is finally being mainlined. The libata pull for Linux 3.9 also adds in a Serial ATA driver for the R-Car SoC and some other random changes. The pull request can be found on the Linux kernel mailing list.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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