On Fri, 21 Nov 2014, Chongwen Huang wrote: > [ 12.167370] thinkpad_acpi: Lenovo ThinkPad X230, model 2306A71 > [ 12.167839] thinkpad_acpi: Unsupported brightness interface, please > contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx This is normal, you can ignore that message. > [ 37.901936] thinkpad_ec: thinkpad_ec_request_row: arg0 rejected: > (0x01:0x00)->0x00 There is no support for directly talking to the EC SBS and HDAPS subsystems on any recent Lenovo boxes. I can't help you with this, unfortunately. We should be able to talk to the SBS (smart battery subsystem) through ACPI, but that would require a _lot_ of research I can't do without a lot of thinkpads to experiment with. And all I have is an aging T43 :-) HDAPS support requires a clean-room reverse engineering of the EC firmware. Since "mg" has disappeared, and the tp-smapi author has also apparently retired from thinkpads, we have no data and no one to write a driver. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel