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john30 / ebusd

daemon for communication with eBUS heating systems
GNU General Public License v3.0
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unable to open /dev/ttyUSB0: ERR: generic device error #289

Closed jerome686 closed 5 years ago

jerome686 commented 5 years ago

Hi when I use ebusd -f -c /tmp --logareas bus --loglevel info --lograwdata=bytes -d /dev/ttyUSB0,

2019-08-05 01:15:58.708 [bus error] unable to open /dev/ttyUSB0: ERR: generic device error 2019-08-05 01:15:58.709 [bus notice] bus started with own address 31/36 2019-08-05 01:15:58.709 [bus notice] device invalid 2019-08-05 01:16:03.709 [bus error] unable to open /dev/ttyUSB0: ERR: generic device error 2019-08-05 01:16:03.710 [bus notice] device invalid ...................................

I used a esera usb ebus coupler,

when I type ebusctl info

version: ebusd 3.3.v3.3-24-g958a9a8 update check: revision v3.3-4-g212b22d available signal: acquired symbol rate: 23 max symbol rate: 40 min arbitration micros: 718 max arbitration micros: 718 min symbol latency: 5 max symbol latency: 6 reconnects: 0 masters: 2 messages: 5 conditional: 0 poll: 0 update: 0 address 03: master #11 address 08: slave #11, scanned "MF=Vaillant;ID=BAI00;SW=0518;HW=7401", loaded "vaillant/08.bai.csv" address 31: master #8, ebusd address 36: slave #8, ebusd

what's wrong ?

john30 commented 5 years ago

is the device available at all? check by doing a file listing like this: ls -la /dev/ttyUSB0 and does this reveal read+write rights on the device?

samm-git commented 5 years ago

For me it looks like you already have one instance running and trying to run another one. This causing port access conflict.

jerome686 commented 5 years ago

thank you very much, a ebusd instance was running, I killed it, and everything is ok