activate USB DSM 7.2

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activate USB DSM 7.2

I have the DS118 and i wil activate the USB optical probe (kampstrup), but the DSM7.2 version doesn't startup the USB drivers. In this case i have tried to activate the USB port and i dit something stupid by overwriting the file usbserial.ko. Is there anyone who have this file for the DS118, so that i can recover this file.

The problem is that i get the message: "could not insert module /lib/modules/usbserial.ko" after the command: insmod /lib/modules/usbserial.ko

For full context, at first i run the commands to activate USB:
/sbin/modprobe usbserial
/sbin/modprobe ftdi_sio
/sbin/modprobe cdc-acm

Than i run the following commands:
insmod /lib/modules/usbserial.ko
chmod 777 /dev/ttyUSB0
chmod 777 /dev/ttyUSB1
chmod 777 /dev/ttyUSB2

I have also try to get the right files with install the package: SynoCommunity , but it doesn't work. It gives the same message: "could not insert..." after the command insmod /lib/modules/usbserial.ko

Can anyone help me with the right procedure to solve this problem and activate the USB ports (and to recover the usbserial.ko file)?

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