sserial error

When i run linuxcnc via halcmd to test sserial with commands:

i get the error:


But when i creat ini and hal file to run, it works, any idea why this error happens? One thing i see difference here is name of period.

What happens if you switch the order of read and write in the test hal?

Typically the cycle is read-calculate-write.

It worked, thank you very much