Config usb webcam raspberry pi 3

Hello.
Im trying to setup a usb webcam (without no result), this one .
I'm on a Raspberry Pi 3 Model B Rev 1.2k

First question:
each time i change the octopi.txt i should reboot the Raspberry or just restart Octoprint?

the following is how i configured octoprint.txt
camera_usb_options="-r 640x480 -f 10 -d /dev/video10"

if a execure dmesg
i get this:
usb 1-1.3: New USB device found, idVendor=1903, idProduct=8328, bcdDevice= 1.00
[ 3281.108343] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3281.108359] usb 1-1.3: Product: HD camera
[ 3281.108375] usb 1-1.3: Manufacturer: Generic
[ 3281.109794] uvcvideo: Found UVC 1.00 device HD camera (1903:8328)
[ 3281.114005] input: HD camera : HD camera as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/input/input1135
[ 3281.381516] usb 1-1.3: USB disconnect, device number 43
[ 3281.786657] usb 1-1.3: new high-speed USB device number 44 using dwc_otg
[ 3282.546660] usb 1-1.3: device descriptor read/64, error -71
cl[ 3283.206697] usb 1-1.3: device not accepting address 44, error -71
[ 3284.126974] usb 1-1-port3: Cannot enable. Maybe the USB cable is bad?
[ 3284.127142] usb 1-1-port3: attempt power cycle
the list is long but is repenting

If i execute this ls /dev/video* i get this
/dev/video10 /dev/video11 /dev/video12 /dev/video13 /dev/video14 /dev/video15 /dev/video16 /dev/video18

lf i execute this lsusb
Bus 001 Device 004: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

so my question is what else i can try to make it work?

thanks
Marco
webcamd.log (1.5 KB)