dmesg | grep -i usb
lsusb
Post here the above
root@knx:/etc/openhab# dmesg | grep -i usb
[ 0.142426] usbcore: registered new interface driver usbfs
[ 0.142512] usbcore: registered new interface driver hub
[ 0.142605] usbcore: registered new device driver usb
[ 1.982256] usbcore: registered new interface driver lan78xx
[ 1.985059] usbcore: registered new interface driver smsc95xx
[ 2.959772] dwc_otg 3f980000.usb: DWC OTG Controller
[ 2.962080] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[ 2.964528] dwc_otg 3f980000.usb: irq 89, io mem 0x00000000
[ 2.971878] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 2.976572] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.979081] usb usb1: Product: DWC OTG Controller
[ 2.981533] usb usb1: Manufacturer: Linux 5.10.103-v7+ dwc_otg_hcd
[ 2.984017] usb usb1: SerialNumber: 3f980000.usb
[ 2.987264] hub 1-0:1.0: USB hub found
[ 2.993762] usbcore: registered new interface driver usb-storage
[ 3.027581] usbcore: registered new interface driver usbhid
[ 3.030191] usbhid: USB HID core driver
[ 3.324833] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 3.565191] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 3.570352] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.573921] hub 1-1:1.0: USB hub found
[ 3.894851] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 4.025257] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 4.030757] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.034517] hub 1-1.1:1.0: USB hub found
[ 4.364883] usb 1-1.1.3: new high-speed USB device number 4 using dwc_otg
[ 4.509489] usb 1-1.1.3: New USB device found, idVendor=1908, idProduct=1320, bcdDevice= 1.00
[ 4.515580] usb 1-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4.521808] usb 1-1.1.3: Product: Mass storage
[ 4.525169] usb 1-1.1.3: Manufacturer: Generic
[ 4.528288] usb 1-1.1.3: SerialNumber: AB5595148119
[ 4.545780] usb-storage 1-1.1.3:1.0: USB Mass Storage device detected
[ 4.564971] scsi host0: usb-storage 1-1.1.3:1.0
[ 4.614925] usb 1-1.2: new high-speed USB device number 5 using dwc_otg
[ 4.758747] usb 1-1.2: New USB device found, idVendor=0835, idProduct=8500, bcdDevice= 1.09
[ 4.764377] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.767574] usb 1-1.2: Product: USB2.0 Hub
[ 4.770352] usb 1-1.2: Manufacturer: Action Star
[ 4.774440] hub 1-1.2:1.0: USB hub found
[ 4.904887] usb 1-1.1.1: new high-speed USB device number 6 using dwc_otg
[ 5.035447] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800, bcdDevice= 3.00
[ 5.040721] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.135058] usb 1-1.2.1: new high-speed USB device number 7 using dwc_otg
[ 5.268684] usb 1-1.2.1: New USB device found, idVendor=0835, idProduct=8501, bcdDevice= 6.09
[ 5.274145] usb 1-1.2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 5.279967] usb 1-1.2.1: Product: USB HID
[ 5.282814] usb 1-1.2.1: Manufacturer: Action Star
[ 5.305454] hid-generic 0003:0835:8501.0001: hiddev96,hidraw0: USB HID v1.11 Device [Action Star USB HID] on usb-3f980000.usb-1.2.1/input0
[ 5.414925] usb 1-1.2.4: new full-speed USB device number 8 using dwc_otg
[ 5.568536] usb 1-1.2.4: New USB device found, idVendor=0451, idProduct=16a8, bcdDevice= 0.09
[ 5.574682] usb 1-1.2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5.580831] usb 1-1.2.4: Product: TI CC2531 USB CDC
[ 5.586934] usb 1-1.2.4: Manufacturer: Texas Instruments
[ 5.586947] usb 1-1.2.4: SerialNumber: __0X00124B001949B82D
[ 5.686642] usb 1-1.2.5: new high-speed USB device number 9 using dwc_otg
[ 5.818851] usb 1-1.2.5: New USB device found, idVendor=0835, idProduct=8500, bcdDevice= 1.09
[ 5.824353] usb 1-1.2.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 5.824368] usb 1-1.2.5: Product: USB2.0 Hub
[ 5.824387] usb 1-1.2.5: Manufacturer: Action Star
[ 5.846049] hub 1-1.2.5:1.0: USB hub found
[ 6.164897] usb 1-1.2.5.1: new high-speed USB device number 10 using dwc_otg
[ 6.298763] usb 1-1.2.5.1: New USB device found, idVendor=0835, idProduct=8502, bcdDevice= 6.09
[ 6.298792] usb 1-1.2.5.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 6.298807] usb 1-1.2.5.1: Product: USB HID
[ 6.298822] usb 1-1.2.5.1: Manufacturer: Action Star
[ 6.303015] hid-generic 0003:0835:8502.0002: hiddev97,hidraw1: USB HID v1.11 Device [Action Star USB HID] on usb-3f980000.usb-1.2.5.1/input0
[ 6.404875] usb 1-1.2.5.4: new full-speed USB device number 11 using dwc_otg
[ 6.536861] usb 1-1.2.5.4: New USB device found, idVendor=0658, idProduct=0200, bcdDevice= 0.00
[ 6.536885] usb 1-1.2.5.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 8.666205] usbcore: registered new interface driver brcmfmac
[ 8.817189] usbcore: registered new interface driver uas
[ 8.878065] cdc_acm 1-1.2.4:1.0: ttyACM0: USB ACM device
[ 8.883003] cdc_acm 1-1.2.5.4:1.0: ttyACM1: USB ACM device
[ 8.883920] usbcore: registered new interface driver cdc_acm
[ 8.883937] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 10.817531] ext4 filesystem being mounted at /mnt/usb supports timestamps until 2038 (0x7fffffff)
[2011424.212660] usb 1-1.1.2: new full-speed USB device number 12 using dwc_otg
[2011424.358454] usb 1-1.1.2: New USB device found, idVendor=28c2, idProduct=000c, bcdDevice= 2.01
[2011424.358466] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[2011424.358474] usb 1-1.1.2: Product: KNX-USB Inteface
[2011424.358482] usb 1-1.1.2: Manufacturer: ESYLUX
[2011424.358489] usb 1-1.1.2: SerialNumber: 0072130B0148
[2011424.372371] hid-generic 0003:28C2:000C.0003: hiddev98,hidraw2: USB HID v1.10 Device [ESYLUX KNX-USB Inteface] on usb-3f980000.usb-1.1.2/input0
[2012278.435934] gusbcfg_show(9580bbb3) -> platform_dev aa1853cb, otg_dev 8e3aa43b
[2012278.438821] dwc_otg 3f980000.usb: Invalid offset (0xffffffff)
[2012279.628686] GUSBCFG @0xBB80000C : 0x20001700
[2012313.850220] dwc_otg 3f980000.usb: Invalid offset (0xffffffff)
[2012314.207588] gusbcfg_show(9580bbb3) -> platform_dev aa1853cb, otg_dev 8e3aa43b
[2012314.207905] GUSBCFG @0xBB80000C : 0x20001700
[2012882.609574] usb 1-1.1.2: USB disconnect, device number 12
[2012887.259352] usb 1-1.1.2: new full-speed USB device number 13 using dwc_otg
[2012887.406078] usb 1-1.1.2: New USB device found, idVendor=28c2, idProduct=000c, bcdDevice= 2.01
[2012887.406093] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[2012887.406100] usb 1-1.1.2: Product: KNX-USB Inteface
[2012887.406107] usb 1-1.1.2: Manufacturer: ESYLUX
[2012887.406113] usb 1-1.1.2: SerialNumber: 0072130B0148
[2012887.418043] hid-generic 0003:28C2:000C.0004: hiddev98,hidraw2: USB HID v1.10 Device [ESYLUX KNX-USB Inteface] on usb-3f980000.usb-1.1.2/input0
root@knx:/etc/openhab# lsusb
Bus 001 Device 011: ID 0658:0200 Sigma Designs, Inc. Aeotec Z-Stick Gen5 (ZW090) - UZB
Bus 001 Device 010: ID 0835:8502 Action Star Enterprise Co., Ltd
Bus 001 Device 009: ID 0835:8500 Action Star Enterprise Co., Ltd
Bus 001 Device 008: ID 0451:16a8 Texas Instruments, Inc.
Bus 001 Device 007: ID 0835:8501 Action Star Enterprise Co., Ltd
Bus 001 Device 005: ID 0835:8500 Action Star Enterprise Co., Ltd
Bus 001 Device 004: ID 1908:1320 GEMBIRD PhotoFrame PF-15-1
Bus 001 Device 013: ID 28c2:000c
Bus 001 Device 006: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@knx:/etc/openhab#
its this one
ID 28c2:000c
while i have it connected to this machine, i will try knxd here on debian, maybe it will work better then openwrt…
ls /dev/ttyACM*
i have acm0 and acm1 (my zigbee2mqtt CC2558 and zwave aeotec gateway. this knx interface is HID crap.
Crap I did not read the complete output. But when when I went to the website I swear I saw serial… yeah if it’s presented as a hid knxd is your best bet to translate.
i configured it to run on knxd on the same machine, lets see the stability now…with your recommended arguments
you are not wrong you saw it 
Well lesson learned pay attention. Serie that mounts on din rail… how is it going any disconnect?
going strong for 7 hours no errors (knock on wood)
I did however change something else, I removed pingInterval=300,readInterval=3600 for my generic thing as Udo recommends it a lot on this forum
and I restarted openhab service as I noticed its on 100% cpu
but anyway, I still think moving to another knxd is the main fix. keep monitoring and hoping for the best
not a peep from knx binding in the logs of last 4 days…marking it as solved.
so the solution was to install knxd on raspbian instead of openwrt and configure minimal config. i even disabled routing as it didnt work anyway, so running with just tunneling enabled.
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