Linux cli command ttyS

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command ttyS and provides detailed information about the command ttyS, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the ttyS.

NAME 🖥️ ttyS 🖥️

serial terminal lines

DESCRIPTION

ttyS[0-3] are character devices for the serial terminal lines.

They are typically created by:

mknod -m 660 /dev/ttyS0 c 4 64 # base address 0x3f8
mknod -m 660 /dev/ttyS1 c 4 65 # base address 0x2f8
mknod -m 660 /dev/ttyS2 c 4 66 # base address 0x3e8
mknod -m 660 /dev/ttyS3 c 4 67 # base address 0x2e8
chown root:tty /dev/ttyS[0-3]

FILES

/dev/ttyS[0-3]

SEE ALSO

chown(1), mknod(1), tty(4), agetty(8), mingetty(8), setserial(8)

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