HID: Add driver for USB ELAN Touchpad
This is driver for usb touchpad found on HP Pavilion x2 10-p0xx laptop. On this device keyboard and touchpad connected as a single usb device with two interfaces: keyboard, which exposes ordinary keys and second interface is touchpad which also contains FlightMode button and audio mute led (which physically placed on keyboard for some reason). Initially, this touchpad works in mouse emulation mode, this driver will switch it to touchpad mode, which can track 5 fingers and can report coordinates for two of them. Signed-off-by: NAlexandrov Stansilav <neko@nya.ai> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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drivers/hid/hid-elan.c
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