Raspberry Pi 3 Aeotec zwave gen5 showing up in dmesg but not in /dev

Installation Home Assistant OS
1

Hello,

I hope somebody can give me a hand with this one. I just installed Hassio yesterday evening for the very first time. I’m now stuck in trying to enable zwave capabilities.

I’m confused with a weird behaviour: if I attach the dongle to my RPI3, and run dmesg I see this:

[10629.070455] usb 1-1.5: new full-speed USB device number 6 using dwc_otg
[10629.173766] usb 1-1.5: New USB device found, idVendor=0658, idProduct=0200
[10629.173785] usb 1-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[10629.175273] cdc_acm 1-1.5:1.0: ttyACM0: USB ACM device

but if I now attempt to see whether a file in /dev has been created, I don’t see a thing
core-ssh:/dev# ls -l /dev/tty*
crw-rw-rw- 1 root root 5, 0 Jan 27 11:21 /dev/tty

Hope somebody can give me a hand :slight_smile:

/kitus

2

When you SSH to Hass.io, you’re not on the Docker container running Home Assistant, so that’s perfectly normal. You should find it is available as /dev/ttyACM0 but you can run hassio host hardware to confirm this.

3

OMG, I’m dumb!!! You are right. It makes a lot of sense what you are saying. I issued the command you suggested and this is what I get

core-ssh:~# hassio host hardware
{
    "result": "ok",
    "data": {
        "serial": [
            "/dev/ttyAMA0",
            "/dev/ttyACM1"
        ],
        "input": [],
        "disk": [],
        "gpio": [
            "gpiochip0",
            "gpiochip100"
        ],
        "audio": {
            "0": {
                "name": "bcm2835 - bcm2835 ALSA",
                "type": "ALSA",
                "devices": {
                    "0": "digital audio playback",
                    "1": "digital audio playback"
                }
            }
        }
    }
}

how come I see two different USB devices ttyAMA0 and ttyACM1? I suspect they all belong to the same ZWAVE dongle.

further on this tipic, I restarted my hassio yesterday (installed 2 days ago) and all the sudden zwave broke. The problem was that the kernel had assigned ttyACM1 instead of ttyACM0. How do I statically assign ttyX to my dongle?

thanks in advance

4

Unlikely, the Z-Wave device will only have one entry in /dev.

That’s a thing that likely needs to be done in ResinOS, and not something I know how to do. Worth hopping on to the HA Discord channel hassio to see if anybody else knows, or try the ResinOS chat.

5

I have nothing else attached to the Raspberry. Can you help me figure out what that other device may be?

oh really? isn’t this something which happens often? I just rebooted HA and again, now the device is mounted in ttyACM0 :frowning:

6

Unfortunately I don’t use Hass.io, so I can’t help you with it. The Discord #hassio channel, and the ResionOS chat are likely good choices for getting further help.