Jan 14 16:14:15 cnc-mill kernel: [ 3720.188949] hm2/hm2_5i25.0: Smart Serial Error: port 0 channel 0. You may see this error if the FPGA card read thread is not running. This error message will not repeat.
Jan 14 16:14:15 cnc-mill kernel: [ 3720.188959] hm2/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0 error = (13) Communication error
Jan 14 16:14:15 cnc-mill kernel: [ 3720.188963] hm2/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0 error = (3) Timeout
Jan 14 16:14:15 cnc-mill kernel: [ 3720.211936] hm2/hm2_5i25.0: Smart Serial Comms Error: There have been more than 1 errors in 10 thread executions at least 200 times. See other error messages for details.
Jan 14 16:14:15 cnc-mill kernel: [ 3720.211945] hm2/hm2_5i25.0: ***Smart Serial Port 0 will be stopped***