I use modified QExtSerialPort because I don't need any libs. I write to port successfully and successfully read from port if data generated by device itself. But on my commands to it it doesn't answer. bytesAvailable () always returns 0 on any attempt to read after successful command record. Under Windows all works fine. I test com port with CoolTerm application and it work properly too.
How to fix this behavior?
Thx.
