CONFIG_LEGACY_PTYS: Legacy (BSD) PTY support

General informations

The Linux kernel configuration item CONFIG_LEGACY_PTYS has multiple definitions:

Legacy (BSD) PTY support found in drivers/tty/Kconfig

The configuration item CONFIG_LEGACY_PTYS:

• prompt: Legacy (BSD) PTY support
• type: bool
• depends on: (none)
• defined in drivers/tty/Kconfig
• found in Linux kernels: 2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

A pseudo terminal (PTY) is a software device consisting of two halves: a master and a slave. The slave device behaves identical to a physical terminal; the master device is used by a process to read data from and write data to the slave, thereby emulating a terminal. Typical programs for the master side are telnet servers and xterms.

Linux has traditionally used the BSD-like names /dev/ptyxx for masters and /dev/ttyxx for slaves of pseudo terminals. This scheme has a number of problems, including security. This option enables these legacy devices; on most systems, it is safe to say N.

Legacy (BSD) PTY support found in arch/um/Kconfig.char

The configuration item CONFIG_LEGACY_PTYS:

• prompt: Legacy (BSD) PTY support
• type: bool
• depends on: (none)
• defined in arch/um/Kconfig.char
• found in Linux kernels: 2.6.14–2.6.39, 3.0–3.1

Help text

A pseudo terminal (PTY) is a software device consisting of two halves: a master and a slave. The slave device behaves identical to a physical terminal; the master device is used by a process to read data from and write data to the slave, thereby emulating a terminal. Typical programs for the master side are telnet servers and xterms.

Linux has traditionally used the BSD-like names /dev/ptyxx for masters and /dev/ttyxx for slaves of pseudo terminals. This scheme has a number of problems, including security. This option enables these legacy devices; on most systems, it is safe to say N.

Legacy (BSD) PTY support found in drivers/char/Kconfig

The configuration item CONFIG_LEGACY_PTYS:

• prompt: Legacy (BSD) PTY support
• type: bool
• depends on: (none)
• defined in drivers/char/Kconfig
• found in Linux kernels: 2.6.4–2.6.38

Help text

A pseudo terminal (PTY) is a software device consisting of two halves: a master and a slave. The slave device behaves identical to a physical terminal; the master device is used by a process to read data from and write data to the slave, thereby emulating a terminal. Typical programs for the master side are telnet servers and xterms.

Linux has traditionally used the BSD-like names /dev/ptyxx for masters and /dev/ttyxx for slaves of pseudo terminals. This scheme has a number of problems, including security. This option enables these legacy devices; on most systems, it is safe to say N.

Legacy (BSD) PTY support found in arch/um/Kconfig_char

The configuration item CONFIG_LEGACY_PTYS:

• prompt: Legacy (BSD) PTY support
• type: bool
• depends on: (none)
• defined in arch/um/Kconfig_char
• found in Linux kernels: 2.6.9–2.6.13

Help text

A pseudo terminal (PTY) is a software device consisting of two halves: a master and a slave. The slave device behaves identical to a physical terminal; the master device is used by a process to read data from and write data to the slave, thereby emulating a terminal. Typical programs for the master side are telnet servers and xterms.

Linux has traditionally used the BSD-like names /dev/ptyxx for masters and /dev/ttyxx for slaves of pseudo terminals. This scheme has a number of problems, including security. This option enables these legacy devices; on most systems, it is safe to say N.

Hardware

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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