android - USB Touch Screen Input device not recognised -


added support lg 17mb15t usb touch screen hid-ids.h , hid-multitouch.c , recompiled kernel. device recognised in dmesg , claimed hid-multitouch :

<6>[  307.451668] usb 3-1.6: new full-speed usb device number 7 using sw-ehci <6>[  307.563695] usb 3-1.6: new usb device found, idvendor=16fd, idproduct=d091 <6>[  307.563753] usb 3-1.6: new usb device strings: mfr=1, product=2, serialnumber=0 <6>[  307.563803] usb 3-1.6: product: lg ts2009f-usb <6>[  307.563842] usb 3-1.6: manufacturer: edamak <6>[  307.582868] input: edamak lg ts2009f-usb /devices/platform/sw-ehci.2/usb3/3-1/3-1.6/3-1.6:1.0/input/input8 <6>[  307.588181] hid-multitouch 0003:16fd:d091.0006: input: usb hid v1.11 mouse  [edamak lg ts2009f-usb] on usb-sw-ehci-1.6/input0

getevent -l lists device input device:

add device 1: /dev/input/event2   name:     "edamak lg ts2009f-usb" add device 2: /dev/input/event5   name:     "sun7i-ir" not driver version /dev/input/mouse0, not typewriter add device 3: /dev/input/event1   name:     "axp20-supplyer" add device 4: /dev/input/event0   name:     "sw-keyboard" not driver version /dev/input/mice, not typewriter

however no events fired it. /system/usr/idc/vendor_16fd_product_d091.idc looks this:

touch.devicetype = touchscreen touch.orientationaware = 1 device.internal = 0 keyboard.layout = qwerty keyboard.charactermap = qwerty2 keyboard.orientationaware =1 keyboard.builtin = 1 cursor.mode = navigation cursor.orientationaware = 1

dumsys input not list device @ all. ive tried touch.devicetype = pointer - no luck!

however if load stock kernel (allwiner a20) linux 3.4, adroid 4.2.2, device detected :

gen-usb 0003:16fd:d091.0006: input: usb hid v1.11 mouse

and events fired when touching or pressing on screen. dumsys input still not recognise device.

im suspecting issue .idc file cant find information on properties , legal values. alternately there may intermediate file required make work.

the touchscreen works ok on linaro 12 on same hardware (pcduino 3), windows 7, 8 on other hardware.

your , advise appreciated.


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