On 02/22/2015 01:08 PM, hiren panchasara wrote:
> I've just got a lightweight dell e7240 which is pretty nice with very
> good batterylife. 
> Only trouble is none of the buttons work.
> Is there any hackery people do to make them work? Time permitting, I'd
> like to see if we can get something together which looks like acpi_ibm.

Some machines throw acpi_wmi(4) events when those special buttons are
pushed.  Load acpi_wmi(4) driver and cat /proc/wmistat0.  The WMI
objects with hex numbers in the EVENT column *might* be for your keys. 
My HP Envy Sleekbook uses WMI for the radios key, but I haven't figured
out how to get events for the LCD brightness control keys (although my
brightness controls *do* work).  I used a Linux driver as a reference tho...

I'd like to make the acpi_wmi(4) interface easier to use, but my backlog
of contributions I'm sitting on is only growing.


> cheers,
> Hiren

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