admin-guide/laptops/thinkpad-acpi.rst

183 Hot keys
191 some important events and also keyboard hot key presses to the operating
196 The driver enables the HKEY ("hot key") event reporting automatically
203 Some of these events refer to hot key presses, but not all of them.
205 The driver will generate events over the input layer for hot keys and
208 assigned to each hot key.
210 The hot key bit mask allows some control over which hot keys generate
217 modified do anything.  Not all hot keys can be individually controlled
240 	echo 0xffffffff > /proc/acpi/ibm/hotkey -- enable all hot keys
241 	echo 0 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
253 nor does it allow one to manipulate the hot key mask when the firmware
267 		Returns the hot keys mask when thinkpad-acpi was loaded.
268 		Upon module unload, the hot keys mask will be restored
281 		the firmware, ACPI event generation) for each hot key
282 		(see above).  Returns the current status of the hot keys
287 		supported hot keys, when echoed to hotkey_mask above.
295 		supported hot keys, except those which are always
301 		bit mask that selects which hot keys will the driver
306 		Hot keys whose bits are set in hotkey_source_mask are
308 		enabled in hotkey_mask.  Only a few hot keys are
322 		frequency in Hz for hot key polling. It must be between
327 		will cause hot key presses that require NVRAM polling
331 		pressings of the same hot key to be misreported as a
372 A Hot key is mapped to a single input layer EV_KEY event, possibly
401 Thinkpad-acpi Hot Key event map (version 0x4101):
413 				this hot key, even with hot keys
423 				of event, either the hot key
517 The ThinkPad firmware does not allow one to differentiate when most hot
522 hot key press or release, but the firmware will do it for either one, not
574 0x6011		ALARM: battery is too hot
575 0x6012		ALARM: battery is extremely hot
576 0x6021		ALARM: a sensor is too hot
577 0x6022		ALARM: a sensor is extremely hot
590 When any of the "too hot" alarms happen, according to Lenovo the user
596 The "extremely hot" alarms are emergencies.  According to Lenovo, the
1638 0x000200:	Hot key support for 32 hot keys, and radio slider switch
1640 0x010000:	Hot keys are now handled by default over the input
1642 		and the driver enables hot key handling by default in
1651 0x020100:	Marker for thinkpad-acpi with hot key NVRAM polling
1656 0x020101:	Marker for thinkpad-acpi with hot key NVRAM polling
1674 		and it is always able to disable hot keys.  Very old