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== Pheripheral Touchscreen ==
The screen supplied with the kit has a capacitive touchscreen, it is connected to the board via the [[DESK-MP1-L/Pheripherals/USB_OTG | USB OTG]] port
Are present also an i2c port (J20) for use other touchscreen eg. Ilitek i2c touchscreen, the driver ILI210X are already present on kernel, compatible with ili210x, ili2117, ili2120, ili251x=== Linux messages at boot time ===
For add ilitek i2c touscreen add <code>ilitek@41</code> node on kernel devicetree: <pre
>......soc { ... ... i2cmux{ ... ... i2c@0{ ... ... ilitek@41 { compatible class= "
ilitek,ili251x"; reg = <0x41>; interrupt-parent = <&gpiod>; interrupts = <15 IRQ_TYPE_EDGE_FALLING>; vin-supply = <&touch_vdd>; ilitek,irq-gpio = <&gpiod 15 GPIO_ACTIVE_LOW>; ilitek,resetworkstation-
gpio = <&gpiod 14 GPIO_ACTIVE_LOW>; ilitek,name = terminal"
ilitek_i2c"; touchscreen-size-x = <16384>; touchscreen-size-y = <9600>
; }; ... ... }; ... ... }; ... ...};...
[ 3.408937] usb 1-1: new full-speed USB device number 2 using dwc2
[ 3.678177] input: ILITEK ILITEK-TP as /devices/platform/soc/49000000.usb-otg/usb1/1-1/1-1:1.0/0003:222A:0001.0001/input/input1
[ 3.689297] hid-multitouch 0003:222A:0001.0001: input,hidraw0: USB HID v1.10 Device [ILITEK ILITEK-TP] on usb-49000000.usb-otg-1/input0
[ 3.705350] input: ILITEK ILITEK-TP Mouse as /devices/platform/soc/49000000.usb-otg/usb1/1-1/1-1:1.1/0003:222A:0001.0002/input/input2
[ 3.717019] hid-generic 0003:222A:0001.0002: input,hidraw1: USB HID v1.10 Mouse [ILITEK ILITEK-TP] on usb-49000000.usb-otg-1/input1
...
</pre>
== Calibration = Usage with ''evtest'' ===
Calibration is not necessary as it is a capacitive and non-resistive touch screen which does require calibration.Use command <code>evtest</code>:
In any case if you use the <codepre class="workstation-terminal">tslib<root@desk-mp1:~# evtest No device specified, trying to scan all of /dev/input/event*Available devices:/dev/input/event0: pmic_onkey/dev/input/event1: ILITEK ILITEK-TP/dev/input/event2: ILITEK ILITEK-TP MouseSelect the device event number [0-2]: 1Input driver version is 1.0.1Input device ID: bus 0x3 vendor 0x222a product 0x1 version 0x110Input device name: "ILITEK ILITEK-TP"Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 0 Min 0 Max 16384 Resolution 53 Event code 1 (ABS_Y) Value 0 Min 0 Max 9600 Resolution 55 Event code 47 (ABS_MT_SLOT) Value 0 Min 0 Max 9 Event code 53 (ABS_MT_POSITION_X) Value 0 Min 0 Max 16384 Resolution 53 Event code 54 (ABS_MT_POSITION_Y) Value 0 Min 0 Max 9600 Resolution 55 Event code 57 (ABS_MT_TRACKING_ID) Value 0 Min 0 Max 65535 Event type 4 (EV_MSC) Event code> API you need 5 (MSC_TIMESTAMP)Properties: Property type 1 (INPUT_PROP_DIRECT)Testing ... (interrupt to calibrate with <exit)Event: time 1690972553.988150, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0Event: time 1690972553.988150, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 7993Event: time 1690972553.988150, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 4871Event: time 1690972553.988150, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1Event: time 1690972553.988150, type 3 (EV_ABS), code 0 (ABS_X), value 7993Event: time 1690972553.988150, type 3 (EV_ABS), code 1 (ABS_Y), value 4871Event: time 1690972553.988150, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 0Event: time 1690972553.988150, -------------- SYN_REPORT ------------Event: time 1690972553.994101, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 8000Event: time 1690972553.994101, -------------- SYN_REPORT ------------Event: time 1690972554.000104, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 16000Event: time 1690972554.000104, -------------- SYN_REPORT ------------Event: time 1690972554.006103, type 3 (EV_ABS), code>ts_calibrate</57 (ABS_MT_TRACKING_ID), value -1Event: time 1690972554.006103, type 1 (EV_KEY), code> and then with <330 (BTN_TOUCH), value 0Event: time 1690972554.006103, type 4 (EV_MSC), code>ts_test5 (MSC_TIMESTAMP), value 24000Event: time 1690972554.006103, -------------- SYN_REPORT ------------</codepre> check that the touscreen works correctly.
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[[Category:ETRA]] [[Category:ETRA_SBC]]