Hello List, i have a custom-made board and trouble getting rs485 working. 1. with Kernel 3.5 it works 2. with Kernel 5.10 we got a reaction if the omap and the 8250 driver are both activated but the connection is bad, it seems that both drivers are catching some bits. I am not sure how to continue. Is that behaviour a known problem ? I have seem there are some patches that went into the kernel after 5.10. Does anyone know that they may address that behavier ? note: i am not member of this ml please reply direcly. CU