rt-thread-official/components/lwp/terminal/Kconfig

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menuconfig LWP_USING_TERMINAL
bool "Terminal I/O Subsystem"
depends on RT_USING_SMART
default y
if LWP_USING_TERMINAL
config LWP_PTY_MAX_PARIS_LIMIT
int "Max number of pty devices registered at the same time"
default 64
help
This upper limit is set to protect kernel memory from draining
out by the application if it keeps allocating pty devices.
endif