CONFIG_SERIAL_ATMEL_TTYAT: Install as device ttyATn instead of ttySn

General informations

The Linux kernel configuration item CONFIG_SERIAL_ATMEL_TTYAT has multiple definitions:

Install as device ttyATn instead of ttySn found in drivers/tty/serial/Kconfig

The configuration item CONFIG_SERIAL_ATMEL_TTYAT:

• prompt: Install as device ttyATn instead of ttySn
• type: bool
• depends on: CONFIG_SERIAL_ATMEL = CONFIG_y
• defined in drivers/tty/serial/Kconfig
• found in Linux kernels: 2.6.38–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Say Y here if you wish to have the internal AT91 UARTs appear as /dev/ttyATn (major 204, minor starting at 154) instead of the normal /dev/ttySn (major 4, minor starting at 64). This is necessary if you also want other UARTs, such as external 8250/16C550 compatible UARTs. The ttySn nodes are legally reserved for the 8250 serial driver but are often misused by other serial drivers.

To use this, you should create suitable ttyATn device nodes in /dev/, and pass "console=ttyATn" to the kernel.

Say Y if you have an external 8250/16C550 UART. If unsure, say N.

Install as device ttyATn instead of ttySn found in drivers/serial/Kconfig

The configuration item CONFIG_SERIAL_ATMEL_TTYAT:

• prompt: Install as device ttyATn instead of ttySn
• type: bool
• depends on: CONFIG_SERIAL_ATMEL = CONFIG_y
• defined in drivers/serial/Kconfig
• found in Linux kernels: 2.6.19–2.6.37

Help text

Say Y here if you wish to have the internal AT91 / AT32 UARTs appear as /dev/ttyATn (major 204, minor starting at 154) instead of the normal /dev/ttySn (major 4, minor starting at 64). This is necessary if you also want other UARTs, such as external 8250/16C550 compatible UARTs. The ttySn nodes are legally reserved for the 8250 serial driver but are often misused by other serial drivers.

To use this, you should create suitable ttyATn device nodes in /dev/, and pass "console=ttyATn" to the kernel.

Say Y if you have an external 8250/16C550 UART. If unsure, say N.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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