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for master /dev/pts/x maps to slave terminal /dev/tty[S]y, what/where is the mapping function/database from x to [S]y?

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The kernel acts as the mapping function/database. Each of those slave devices is a connection (identified by the device major/minor number) and stored in the kernel.

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  • question is about what is the associated tty[x]y(slave) to pts[a]b(master)? Commented Jun 28, 2017 at 14:14

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