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-rw-r--r--lib/Kconfig.debug15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a28590083622..bcd9cf52de21 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -345,6 +345,21 @@ config MAGIC_SYSRQ_DEFAULT_ENABLE
This may be set to 1 or 0 to enable or disable them all, or
to a bitmask as described in Documentation/sysrq.txt.
+config MAGIC_SYSRQ_BREAK_EMULATION
+ bool "Enable magic SysRq serial break emulation"
+ depends on MAGIC_SYSRQ && SERIAL_CORE_CONSOLE
+ default n
+ help
+ If you say Y here, then you can use the character sequence ^B^R^K
+ to simulate a BREAK on the serial console. This is useful if for
+ some reason you cannot send a BREAK to your console's serial port.
+ For example, if you have a serial device server that cannot
+ send a BREAK. Enabling this feature can delay the delivery of
+ characters to the TTY because the ^B and a subsequent ^R will be
+ delayed until we know what the next character is.
+
+ If unsure, say N.
+
config DEBUG_KERNEL
bool "Kernel debugging"
help