security. This option enables these legacy devices; on most
systems, it is safe to say N.
-
config LEGACY_PTY_COUNT
int "Maximum number of legacy PTY in use"
depends on LEGACY_PTYS
When not in use, each legacy PTY occupies 12 bytes on 32-bit
architectures and 24 bytes on 64-bit architectures.
+config LDISC_AUTOLOAD
+ bool "Automatically load TTY Line Disciplines"
+ default y
+ help
+ Historically the kernel has always automatically loaded any
+ line discipline that is in a kernel module when a user asks
+ for it to be loaded with the TIOCSETD ioctl, or through other
+ means. This is not always the best thing to do on systems
+ where you know you will not be using some of the more
+ "ancient" line disciplines, so prevent the kernel from doing
+ this unless the request is coming from a process with the
+ CAP_SYS_MODULE permissions.
+
+ Say 'Y' here if you trust your userspace users to do the right
+ thing, or if you have only provided the line disciplines that
+ you know you will be using, or if you wish to continue to use
+ the traditional method of on-demand loading of these modules
+ by any user.
+
+ This functionality can be changed at runtime with the
+ dev.tty.ldisc_autoload sysctl, this configuration option will
+ only set the default value of this functionality.
+
+source "drivers/tty/serial/Kconfig"
+
config SERIAL_NONSTANDARD
bool "Non-standard serial port support"
depends on HAS_IOMEM
synchronous and asynchronous serial adapters
manufactured by Microgate Systems, Ltd. (www.microgate.com)
-config NOZOMI
- tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
- depends on PCI
- help
- If you have a HSDPA driver Broadband Wireless Data Card -
- Globe Trotter PCMCIA card, say Y here.
-
- To compile this driver as a module, choose M here, the module
- will be called nozomi.
-
config ISI
tristate "Multi-Tech multiport card support"
depends on SERIAL_NONSTANDARD && PCI
The module will be called n_hdlc. If you want to do that, say M
here.
-config N_GSM
- tristate "GSM MUX line discipline support (EXPERIMENTAL)"
- depends on NET
- help
- This line discipline provides support for the GSM MUX protocol and
- presents the mux as a set of 61 individual tty devices.
-
-config TRACE_ROUTER
- tristate "Trace data router for MIPI P1149.7 cJTAG standard"
- depends on TRACE_SINK
- help
- The trace router uses the Linux tty line discipline framework to
- route trace data coming from a tty port (say UART for example) to
- the trace sink line discipline driver and to another tty port (say
- USB). This is part of a solution for the MIPI P1149.7, compact JTAG,
- standard, which is for debugging mobile devices. The PTI driver in
- drivers/misc/pti.c defines the majority of this MIPI solution.
-
- You should select this driver if the target kernel is meant for
- a mobile device containing a modem. Then you will need to select
- "Trace data sink for MIPI P1149.7 cJTAG standard" line discipline
- driver.
-
-config TRACE_SINK
- tristate "Trace data sink for MIPI P1149.7 cJTAG standard"
- help
- The trace sink uses the Linux line discipline framework to receive
- trace data coming from the trace router line discipline driver
- to a user-defined tty port target, like USB.
- This is to provide a way to extract modem trace data on
- devices that do not have a PTI HW module, or just need modem
- trace data to come out of a different HW output port.
- This is part of a solution for the P1149.7, compact JTAG, standard.
-
- If you select this option, you need to select
- "Trace data router for MIPI P1149.7 cJTAG standard".
-
config PPC_EPAPR_HV_BYTECHAN
bool "ePAPR hypervisor byte channel driver"
depends on PPC
there simply will be no early console output. This is true also
if you don't boot under a hypervisor at all.
-config NULL_TTY
- tristate "NULL TTY driver"
- help
- Say Y here if you want a NULL TTY which simply discards messages.
-
- This is useful to allow userspace applications which expect a console
- device to work without modifications even when no console is
- available or desired.
-
- In order to use this driver, you should redirect the console to this
- TTY, or boot the kernel with console=ttynull.
-
- If unsure, say N.
-
config GOLDFISH_TTY
tristate "Goldfish TTY Driver"
depends on GOLDFISH
default y if GOLDFISH_TTY=y
select SERIAL_EARLYCON
+config N_GSM
+ tristate "GSM MUX line discipline support (EXPERIMENTAL)"
+ depends on NET
+ help
+ This line discipline provides support for the GSM MUX protocol and
+ presents the mux as a set of 61 individual tty devices.
+
+config NOZOMI
+ tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
+ depends on PCI
+ help
+ If you have a HSDPA driver Broadband Wireless Data Card -
+ Globe Trotter PCMCIA card, say Y here.
+
+ To compile this driver as a module, choose M here, the module
+ will be called nozomi.
+
config MIPS_EJTAG_FDC_TTY
bool "MIPS EJTAG Fast Debug Channel TTY"
depends on MIPS_CDMM
help
FDC channel number to use for KGDB.
-config VCC
- tristate "Sun Virtual Console Concentrator"
- depends on SUN_LDOMS
+config NULL_TTY
+ tristate "NULL TTY driver"
help
- Support for Sun logical domain consoles.
+ Say Y here if you want a NULL TTY which simply discards messages.
-config LDISC_AUTOLOAD
- bool "Automatically load TTY Line Disciplines"
- default y
+ This is useful to allow userspace applications which expect a console
+ device to work without modifications even when no console is
+ available or desired.
+
+ In order to use this driver, you should redirect the console to this
+ TTY, or boot the kernel with console=ttynull.
+
+ If unsure, say N.
+
+config TRACE_ROUTER
+ tristate "Trace data router for MIPI P1149.7 cJTAG standard"
+ depends on TRACE_SINK
help
- Historically the kernel has always automatically loaded any
- line discipline that is in a kernel module when a user asks
- for it to be loaded with the TIOCSETD ioctl, or through other
- means. This is not always the best thing to do on systems
- where you know you will not be using some of the more
- "ancient" line disciplines, so prevent the kernel from doing
- this unless the request is coming from a process with the
- CAP_SYS_MODULE permissions.
+ The trace router uses the Linux tty line discipline framework to
+ route trace data coming from a tty port (say UART for example) to
+ the trace sink line discipline driver and to another tty port (say
+ USB). This is part of a solution for the MIPI P1149.7, compact JTAG,
+ standard, which is for debugging mobile devices. The PTI driver in
+ drivers/misc/pti.c defines the majority of this MIPI solution.
- Say 'Y' here if you trust your userspace users to do the right
- thing, or if you have only provided the line disciplines that
- you know you will be using, or if you wish to continue to use
- the traditional method of on-demand loading of these modules
- by any user.
+ You should select this driver if the target kernel is meant for
+ a mobile device containing a modem. Then you will need to select
+ "Trace data sink for MIPI P1149.7 cJTAG standard" line discipline
+ driver.
- This functionality can be changed at runtime with the
- dev.tty.ldisc_autoload sysctl, this configuration option will
- only set the default value of this functionality.
+config TRACE_SINK
+ tristate "Trace data sink for MIPI P1149.7 cJTAG standard"
+ help
+ The trace sink uses the Linux line discipline framework to receive
+ trace data coming from the trace router line discipline driver
+ to a user-defined tty port target, like USB.
+ This is to provide a way to extract modem trace data on
+ devices that do not have a PTI HW module, or just need modem
+ trace data to come out of a different HW output port.
+ This is part of a solution for the P1149.7, compact JTAG, standard.
-source "drivers/tty/hvc/Kconfig"
+ If you select this option, you need to select
+ "Trace data router for MIPI P1149.7 cJTAG standard".
-source "drivers/tty/serial/Kconfig"
+config VCC
+ tristate "Sun Virtual Console Concentrator"
+ depends on SUN_LDOMS
+ help
+ Support for Sun logical domain consoles.
+
+source "drivers/tty/hvc/Kconfig"
endif # TTY
projects / platform / kernel / linux-rpi.git / commitdiff