How to tell if idc file was used?

I have an IR touch frame device which I have to configure using the idc file, however I am not sure if it is used at all.

I have changed the device type to pointer which should show a cursor on the screen when operated, and it is not happening.

From dmesg:

[
76.937599]  [0:

 khubd:
40] usb 1-1: new full-speed USB device number 2 using xhci-hcd

[
76.952845]  [0:

 khubd:
40] usb 1-1: New USB device found, idVendor=1ff7, idProduct=0013

[
76.952907]  [0:

 khubd:
40] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[
76.952955]  [0:

 khubd:
40] usb 1-1: Product: FC49WH00DL-CT-B2-10P

[
76.953002]  [0:

 khubd:
40] usb 1-1: Manufacturer: Touch Device

[
76.953045]  [0:

 khubd:
40] usb 1-1: SerialNumber: 1000

[
76.969757]  [0:

 khubd:
40] input: Touch Device FC49WH00DL-CT-B2-10P as /devices/usb.25/ff600000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1:1.0/input/input5

[
76.976113]  [0:

 khubd:
40] hid-multitouch 0003:1FF7:0013.0004: input,hiddev0,hidraw3: USB HID v2.00 Mouse [Touch Device FC49WH00DL-CT-B2-10P] on usb-xhci-hcd.0.auto-1/input0

The file I've created is: /system/usr/idc/Vendor_1ff7_Product_0013.idc.
How can I make sure the file will be used?

Is it enough to reconnect the device to "reload" the changes in the file, or would I have to reboot the device?

Thank you