search

knxd / knxd

GNU General Public License v2.0
538 stars 201 forks source link

USB Interface with Systemd #120

Closed buchi2 closed 7 years ago

buchi2 commented 8 years ago

Can you please help me with setting up USB Interface? The Help command gives the output "usb:[bus[:device[:config[:interface]]]]"

But how i can correctly set up the KNXD_OPTS?

When I add KNXD_OPTS="-u /tmp/eib -D -T -R -S usb:1:4:1:0:0" and start knxd with systemctl start knxd.service I get these error:

knxd.service - KNX Daemon Loaded: loaded (/lib/systemd/system/knxd.service; enabled) Active: activating (auto-restart) (Result: exit-code) since Thu 2016-01-28 22:40:54 UTC; 2s ago Process: 23703 ExecStart=/usr/bin/knxd $KNXD_OPTS (code=exited, status=1/FAILURE) Main PID: 23703 (code=exited, status=1/FAILURE)

Jan 28 22:40:54 raspberrypi systemd[1]: Failed to start KNX Daemon. Jan 28 22:40:54 raspberrypi systemd[1]: Unit knxd.service entered failed state.

smurfix commented 8 years ago

You need a "-b" in front of the "usb:" argument.

buchi2 commented 8 years ago

sudo knxd -u /tmp/eib -D -T -R -S -b usb:1:4:1:0:0 gives this output:

E00000029: USBLowLevelDriver: setup config: Device or resource busy initialisation of backend 'usb:1:4:1:0:0' failed: Resource temporarily unavailable

smurfix commented 8 years ago

So it attempts to talk to the USB device but cannot, probably because something else already has it open.

Most common cause: the device got a different device number than last time. Keep in mind that USB bus numbering is dynamic.

I'm sorry but somebody else will have to help you debug this further, as I don't own such an interface.