I want to use tcdrain with termios2.
The problem is the method is defined in termios.h, but not in asm/termbits.h.
It is not possible to use termios.h with asm/termbits.h together as there would have compilation errors as some of the structs are defined in both files.
Background: I would like to control my serial transmission by invoking tcdrain after write to make sure my data have transmitted before continue execution of my program. I would like also use custom serial speeds (thus, using termios2).
How do I use tcdrain with termios2?