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---------------- ttypersist -------------------- :Usage: LD_PRELOAD=ttypersist.so TTYS=/dev/ttyUSB0:/dev/ttyUSB1 <program> :Background: TTY Persist provides an application a fake socket whenever it opens a tty in the TTYS list. In a separate thread, the tty is opened and data is passed to the fake socket so long as the tty is available. If the tty is not available, writes to the fake socket will be dropped, and the socket will not return data on reads. TTY Persist will also save the termios struct across connect/disconnect events and reapply it on reconnect. IOCTLs on the fake socket will forward to the real device if connected. If the device is disconnected, termios data will be saved in the case of writes to the termios struct, and saved termios data will be returned in the case of reads. TTY Persist attempts to re-open the device every 250ms if it is not available.