Hi all, Found udevadmin info result for ID_INPUT_KEY not sync with input_id, this issue happen on udev v157 and v166. I generated a new patch for msi-laptop driver to send out KEY_TOUCHPAD_ON, KEY_TOUCHPAD_OFF key: http://www.spinics.net/lists/platform-driver-x86/msg01543.html I only added the KEY_TOUCHPAD_ON and KEY_TOUCHPAD_OFF in keymap in msi-laptop driver. Then, I add a statement to /lib/udev/rules.d/95-keymap.rules: ENV{DMI_VENDOR}=="MICRO-STAR*", KERNELS=="input*", ATTRS{name}=="MSI Laptop hotkeys", RUN+="keymap $name 0x213 f22 0x214 f23" The above rule transfer the 0x213 scancode to F22, and 0x214 to F23 for KEY_TOUCHPAD_ON AND KEY_TOUCHPAD_OFF. I found X-window always didn't pick out msi-laptop's input device to a keyboard device by evdev driver, because there have no ID_INPUT_KEY for this event node: linux-xlzb:~ # udevadm info --q all -n /dev/input/event7 P: /devices/virtual/input/input7/event7 N: input/event7 S: char/13:71 E: UDEV_LOG=3 E: DEVPATH=/devices/virtual/input/input7/event7 E: SUBSYSTEM=input E: DEVNAME=input/event7 E: ID_INPUT=1 E: DMI_VENDOR=MICRO-STAR INTERNATIONAL CO., LTD E: MAJOR=13 E: MINOR=71 E: DEVLINKS=/dev/char/13:71 But, found there have ID_INPUT_KEY in input_id's result: linux-xlzb:~ # /lib/udev/input_id /devices/virtual/input/input7 ID_INPUT=1 ID_INPUT_KEY=1 On udev v157, there have no ID_INPUT_KEY property in udev database: linux-xlzb:~ # cat /dev/.udev/db/input\:event7 N:input/event7 S:char/13:71 E:ID_INPUT=1 E:DMI_VENDOR=MICRO-STAR INTERNATIONAL CO., LTD The question is: Why there have ID_INPUT_KEY from input_id's result, but have no ID_INPUT_KEY from udevadm-info? Does that mean /dev/.udev/db/input/event7 not sync with /input7/capabilities/key ? Appreciate for any kindly response. Thank's a lot! Joey Lee -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html