Difference between revisions of "HP TP Key mapping"
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Latest revision as of 09:56, 5 September 2011
HP TouchPad key mappings for device buttons
This page is under construction and is served as a reference page for now
event0 covers multiple GPIO keys
event0 has 4 keys - KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_REPLY and ?
event0 they names are self-explanatory except KEY_REPLY is the home key... the key labeled ? is literally labeled as ? and it's purpose is unknown
event1 is pmic8058_pwrkey with KEY_END and KEY_POWER
event2 is headset
tapping power sends KEY_END over event1, holding it (for 1/2 second) sends KEY_POWER
--event0 is on the CPU itself.
--event2 could be from the Audio Processor
evtest /dev/input/event0
Input driver version is 1.0.0
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "gpio-keys"
Supported events:
Event type 0 (Sync)
Event type 1 (Key)
Event code 114 (VolumeDown) Event code 115 (VolumeUp) Event code 232 (Reply) Event code 249 (?)
event type 5 (?)
evtest /dev/input/event1
Input driver version is 1.0.0
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0
Input device name: "pmic8058_pwrkey"
Supported events:
Event type 0 (Sync)
Event type 1 (Key)
Event code 107 (End) Event code 116 (Power)
evtest /dev/input/event2
Input driver version is 1.0.0
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0
Input device name: "headset"
Supported events:
Event type 0 (Sync) Event type 1 (Key)
Event code 164 (PlayPause)
Event type 5 (?) Event code 2 (?) Event code 4 (?)
sysfs locations
udevadm info --query=all --name=/dev/input/event0
P: /devices/platform/gpio-keys/input/input0/event0 E: UDEV_LOG=3 E: DEVPATH=/devices/platform/gpio-keys/input/input0/event0 E: MAJOR=13 E: MINOR=64 E: DEVNAME=input/event0 E: SUBSYSTEM=input
udevadm info --query=all --name=/dev/input/event1
P: /devices/i2c-6/6-0055/pm8058-pwrkey/input/input1/event1 E: UDEV_LOG=3 E: DEVPATH=/devices/i2c-6/6-0055/pm8058-pwrkey/input/input1/event1 E: MAJOR=13 E: MINOR=65 E: DEVNAME=input/event1 E: SUBSYSTEM=input
udevadm info --query=all --name=/dev/input/event2
P: /devices/platform/soc-audio.0/sound/card0/input2/event2 E: UDEV_LOG=3 E: DEVPATH=/devices/platform/soc-audio.0/sound/card0/input2/event2 E: MAJOR=13 E: MINOR=66 E: DEVNAME=input/event2 E: SUBSYSTEM=input