Newer Thinkpad models comes with a mute hotkey with a mute led. It also comes with ACPI AML functions to control hardware mute + led. The patches add sysfs nodes so it is possible to enable, disable and control from user-space. Alex Hung (2): thinkpad-acpi: add sysfs for getting and setting hardware mute thinkpad-acpi: add sysfs for enabling and disabling hardware mute drivers/platform/x86/thinkpad_acpi.c | 77 ++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) -- 1.8.1.2 ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel