admin-guide/laptops/thinkpad-acpi.rst

182 Hot keys
190 some important events and also keyboard hot key presses to the operating
195 The driver enables the HKEY ("hot key") event reporting automatically
202 Some of these events refer to hot key presses, but not all of them.
204 The driver will generate events over the input layer for hot keys and
207 assigned to each hot key.
209 The hot key bit mask allows some control over which hot keys generate
216 modified do anything.  Not all hot keys can be individually controlled
239 	echo 0xffffffff > /proc/acpi/ibm/hotkey -- enable all hot keys
240 	echo 0 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
252 nor does it allow one to manipulate the hot key mask when the firmware
266 		Returns the hot keys mask when thinkpad-acpi was loaded.
267 		Upon module unload, the hot keys mask will be restored
280 		the firmware, ACPI event generation) for each hot key
281 		(see above).  Returns the current status of the hot keys
286 		supported hot keys, when echoed to hotkey_mask above.
294 		supported hot keys, except those which are always
300 		bit mask that selects which hot keys will the driver
305 		Hot keys whose bits are set in hotkey_source_mask are
307 		enabled in hotkey_mask.  Only a few hot keys are
321 		frequency in Hz for hot key polling. It must be between
326 		will cause hot key presses that require NVRAM polling
330 		pressings of the same hot key to be misreported as a
371 A Hot key is mapped to a single input layer EV_KEY event, possibly
400 Thinkpad-acpi Hot Key event map (version 0x4101):
412 				this hot key, even with hot keys
422 				of event, either the hot key
511 The ThinkPad firmware does not allow one to differentiate when most hot
516 hot key press or release, but the firmware will do it for either one, not
568 0x6011		ALARM: battery is too hot
569 0x6012		ALARM: battery is extremely hot
570 0x6021		ALARM: a sensor is too hot
571 0x6022		ALARM: a sensor is extremely hot
584 When any of the "too hot" alarms happen, according to Lenovo the user
590 The "extremely hot" alarms are emergencies.  According to Lenovo, the
1613 0x000200:	Hot key support for 32 hot keys, and radio slider switch
1615 0x010000:	Hot keys are now handled by default over the input
1617 		and the driver enables hot key handling by default in
1626 0x020100:	Marker for thinkpad-acpi with hot key NVRAM polling
1631 0x020101:	Marker for thinkpad-acpi with hot key NVRAM polling
1649 		and it is always able to disable hot keys.  Very old