CONFIG_SERIAL_8250_NR_UARTS: Maximum number of 8250/16550 serial ports

General informations

The Linux kernel configuration item CONFIG_SERIAL_8250_NR_UARTS has multiple definitions:

Maximum number of 8250/16550 serial ports found in drivers/tty/serial/8250/Kconfig

The configuration item CONFIG_SERIAL_8250_NR_UARTS:

• prompt: Maximum number of 8250/16550 serial ports
• type: int
• depends on: CONFIG_SERIAL_8250
• defined in drivers/tty/serial/8250/Kconfig
• found in Linux kernels: 3.3–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Set this to the number of serial ports you want the driver to support. This includes any ports discovered via ACPI or PCI enumeration and any ports that may be added at run-time via hot-plug, or any ISA multi-port serial cards.

Maximum number of 8250/16550 serial ports found in drivers/tty/serial/Kconfig

The configuration item CONFIG_SERIAL_8250_NR_UARTS:

• prompt: Maximum number of 8250/16550 serial ports
• type: int
• depends on: CONFIG_SERIAL_8250
• defined in drivers/tty/serial/Kconfig
• found in Linux kernels: 2.6.38–2.6.39, 3.0–3.2

Help text

Set this to the number of serial ports you want the driver to support. This includes any ports discovered via ACPI or PCI enumeration and any ports that may be added at run-time via hot-plug, or any ISA multi-port serial cards.

Maximum number of 8250/16550 serial ports found in drivers/serial/Kconfig

The configuration item CONFIG_SERIAL_8250_NR_UARTS:

• prompt: Maximum number of 8250/16550 serial ports
• type: int
• depends on: CONFIG_SERIAL_8250
• defined in drivers/serial/Kconfig
• found in Linux kernels: 2.6.13–2.6.37

Help text

Set this to the number of serial ports you want the driver to support. This includes any ports discovered via ACPI or PCI enumeration and any ports that may be added at run-time via hot-plug, or any ISA multi-port serial cards.

Maximum number of non-legacy 8250/16550 serial ports found in drivers/serial/Kconfig

The configuration item CONFIG_SERIAL_8250_NR_UARTS:

• prompt: Maximum number of non-legacy 8250/16550 serial ports
• type: int
• depends on: CONFIG_SERIAL_8250
• defined in drivers/serial/Kconfig
• found in Linux kernels: 2.6.0–2.6.12

Help text

Set this to the number of non-legacy serial ports you want the driver to support. This includes any ports discovered via ACPI or PCI enumeration and any ports that may be added at run-time via hot-plug.

Hardware

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The data is retrived from:

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