needs help on setting up Lenovo micmute button on Arch Linux

Hi,
I'm trying to make my Lenovo Micmute button functions on arch linux, I've done this already on Ubuntu 12.04 (with acpid), but ,

On arch linux , acpi_listen has no output when I press the micmute key , while Ubuntu does , which is:

*ibm/hotkey HKEY 00000080 0000101b*

xev has no output on neither Arch or Ubuntu 12.04

I really don't know where to start .. needs solutions .. thanks

P.S: other information:

# /usr/lib/udev/keymap -i /dev/input/by-path/platform-thinkpad_acpi-event Press ESC to finish, or Control-C if this device is not your primary keyboard
scan code: 0x1A key code: micmute

Just not sure how to map it .. there's also definitions of micmute in /usr/lib/udev/keymaps/module-lenovo

And I tried:

# /usr/lib/udev/keymap /dev/input/by-path/platform-thinkpad_acpi-event 0x01a micmute
setting scancode 0x1A to key code 248

And no changes here

Best Regards,
Aaron Lewis - PGP: 0xDFE6C29E ( http://pgp.mit.edu/ )
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