05-13-2021, 02:52 PM
That's the connection for the touch screen.
You can see it initialize in dmesg during boot.
You can test to see if it is detected on the i2c bus with:
It is 5d. UU indicates a driver is currently attached to it. You may need to install i2c-tools.
You can see it initialize in dmesg during boot.
Code:
[ 1.363669] input: Goodix Capacitive TouchScreen as /devices/platform/soc/1c2ac00.i2c/i2c-1/1-005d/input/input3
Code:
sudo i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- UU -- -- -- UU -- -- --
30: -- -- -- -- -- -- -- -- 38 39 -- -- -- 3d -- 3f
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- UU -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --