Is it possible to use 9-bit serial communication in Linux

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RS-232 communication sometimes uses 9-bit bytes. This can be used to communicate with multiple microcontrollers on a bus where 8 bits are data and the extra bit indicates an address byte (rather than data). Inactive controllers only generate an interrupt for address bytes.

Can a Linux program send and receive 9-bit bytes over a serial device? How?
Apr 14, 2022 in Linux Administration by Rahul
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