dmesg does not work
by Copitano from LinuxQuestions.org on (#5DSX8)
I have a RPi 3B+ connected with a 4 port USB HUB with adapter.
Yesterday after restart of the Pi i had trouble finding ttyUSB0 and ttyUSB1 that where connected directly to the Pi.
Connected to Pi:
16GB USBstick (mounted) USBbackup
4 port USB HUB
mbus to serial converter for Kamstrup 602 heatmeter
RFXcomXL
After restart MBus converter and RFXcom where disconnected. I now connected them to the external USB HUB.
dmesg at first could not find ttyUSB's After another restart it did and i could fix the problem. Now when i typ any dmesg command in conmmandline (Putty) nothing shows however mbus and RFX work in domoticz.
How can i fix this dmesg not showing anything?
Yesterday after restart of the Pi i had trouble finding ttyUSB0 and ttyUSB1 that where connected directly to the Pi.
Connected to Pi:
16GB USBstick (mounted) USBbackup
4 port USB HUB
mbus to serial converter for Kamstrup 602 heatmeter
RFXcomXL
After restart MBus converter and RFXcom where disconnected. I now connected them to the external USB HUB.
dmesg at first could not find ttyUSB's After another restart it did and i could fix the problem. Now when i typ any dmesg command in conmmandline (Putty) nothing shows however mbus and RFX work in domoticz.
How can i fix this dmesg not showing anything?