Kconfig - OpenGrok cross reference for /openbmc/linux/drivers/tty/Kconfig

1 # SPDX-License-Identifier: GPL-2.0
23 	  one can be used for a text-mode user session, and a third could run
25 	  is done with certain key combinations, usually Alt-<function key>.
35 	  You need at least one virtual terminal device in order to make use
42 	  shiny Linux system :-)
68 	  would use the third virtual terminal as system console. (Try "man
95 	  See <file:Documentation/driver-api/console.rst> for more
110 	  Linux has traditionally used the BSD-like names /dev/ptyxx for
119 	  All modern Linux systems use the Unix98 ptys.  Say Y unless
133 	  Linux has traditionally used the BSD-like names /dev/ptyxx
140 	int "Maximum number of legacy PTY in use"
149 	  When not in use, each legacy PTY occupies 12 bytes on 32-bit
150 	  architectures and 24 bytes on 64-bit architectures.
159 	  meaningful real-world utility any more. Its use is considered
168 	  use TIOCSTI even when this is set to N.
189 	  you know you will be using, or if you wish to continue to use
190 	  the traditional method of on-demand loading of these modules
200 	bool "Non-standard serial port support"
203 	  Say Y here if you have any non-standard serial boards -- boards
207 	  serial ports because they serve many terminals or dial-in
212 	  the questions about non-standard serial boards.
261 	bool "ePAPR hypervisor byte channel driver"
266 	  channel, thereby allowing applications to communicate with byte
274 	  via an ePAPR byte channel.  You also need to choose the byte channel
278 	int "Byte channel handle for early console (udbg)"
282 	  If you want early console (udbg) output through a byte channel,
283 	  specify the handle of the byte channel to use.
285 	  For this to work, the byte channel driver must be compiled
286 	  in-kernel, not as a module.
291 	  If the number you specify is not a valid byte channel handle, then
314 	  some countries (for example Czech Republic, T-Mobile ISP) this card
325 	tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
328 	  If you have a HSDPA driver Broadband Wireless Data Card -
335 	bool "MIPS EJTAG Fast Debug Channel TTY"
343 	  TTY devices are named e.g. ttyFDC3c2 (for FDC channel 2 of the FDC on
346 	  The console can be enabled with console=fdc1 (for FDC channel 1 on all
347 	  CPUs). Do not use the console unless there is a debug probe attached
356 	  This registers a console on FDC channel 1 very early during boot (from
357 	  MIPS arch code). This is useful for bring-up and debugging early boot
366 	bool "Use KGDB over an FDC channel"
370 	  This enables the use of KGDB over an FDC channel, allowing KGDB to be
374 	int "KGDB FDC channel"
379 	  FDC channel number to use for KGDB.
390 	  In order to use this driver, you should redirect the console to this
409 	  This makes it possible for user-space programs to send and receive