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-rw-r--r--drivers/tty/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index 341abaed4ce2..069de553127c 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -164,6 +164,9 @@ config LEGACY_TIOCSTI
userspace depends on this functionality to continue operating
normally.
+ Processes which run with CAP_SYS_ADMIN, such as BRLTTY, can
+ use TIOCSTI even when this is set to N.
+
This functionality can be changed at runtime with the
dev.tty.legacy_tiocsti sysctl. This configuration option sets
the default value of the sysctl.