The CyUSBSerial_SDK_Linux contains the library file named 'cyuart.c' in the following directory.
The application can issue calls to the APIs in the library and the necessary operation can be performed.
We do not have an example for UART in the Test_Utility. But, using the library file 'cyuart.c', the necessary functionality can be implemented in the application.
Thank you for replying. I will study file 'cyuart.c'.
I also found usbserial example in windows USB-Serial SDK.
I think it can be use in linux.