AnsweredAssumed Answered

Touchscreen no signal with imx6qdl board

Question asked by HUN KIM on Jun 26, 2018
Latest reply on Jun 26, 2018 by igorpadykov

Hello, I have used yocto for OS with imx6qdl target board. Since I am trying to use ILITEK ILITEK-TP touchscreen, and I confirmed that I have below results once I connected it


input: ILITEK ILITEK-TP as /devices/soc0/soc/2100000.aips-bus/2184000.usb/ci_hdrc.0/usb1/1-1/1-1:1.1/0003:222A:0001.0002/input/input5
hid-generic 0003:222A:0001.0002: input: USB HID v1.10 Mouse [ILITEK ILITEK-TP] on usb-ci_hdrc.0-1/input1


The problem is that I cannot get any signal when I use : cat /dev/input/event4 with touching screen...


And with evtest, I have got below..

/dev/input/event0:      isl29023 light sensor
/dev/input/event1:      mag3110
/dev/input/event2:      mma845x
/dev/input/event3:      gpio-keys
/dev/input/event4:      ILITEK ILITEK-TP
Select the device event number [0-4]: 4
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x222a product 0x1 version 0x110
Input device name: "ILITEK ILITEK-TP"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 272 (BTN_LEFT)
    Event code 273 (BTN_RIGHT)
    Event code 274 (BTN_MIDDLE)
    Event code 275 (BTN_SIDE)
    Event code 276 (BTN_EXTRA)
  Event type 3 (EV_ABS)
    Event code 0 (ABS_X)
      Value      0
      Min        0
      Max    16384
      Resolution      34
    Event code 1 (ABS_Y)
      Value      0
      Min        0
      Max     9600
      Resolution      36
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)


Also, I have confirmed that this touchscreen works well with raspberry pie and my labtop (ubuntu 16.04)..


Lastly, what I have tried recently was that I was attempting to change mecuconfig kernel to add touchscreen driver


with 'bitbake -c menuconfig virtul/kernel'


But, still, I found that there is no file on


evbug.ko mouse serio



Could you anyone tell me what I have to do?


Thank you in advance.