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I am a newbie to linux and drivers and I'm hoping I could get some help with a serial port question I have.
I have noticed that Linux installs TTY on all serial ports and USB ports, by default. This means evreything has to go through a TTY layer before it is passed through to the serial port. I have read a few tutorials and articles on that, and I think I understand that.
My question is, is there any possible way to not use TTY for serial port access? To send data in "RAW" mode?
The reason for this question is, if I understand the concept of TTY correctly, TTY requires a carriage return newline (\r\n) to send the data through to the serial port. Without the newline the data won't be transmitted.
This poses a major headache for my existing programs I am trying to port to Linux from other OS's. I have external devices that write to serial port without issuing newline. If the data is not actually sent out some of my existing codes will not function properly.
Can anybody help me out with understanding this and how I can actually work around this please?