menuconfig RT_USING_SAL bool "Enable socket abstraction layer (SAL)" select RT_USING_NETDEV select RT_USING_SYSTEM_WORKQUEUE default n if RT_USING_SAL config SAL_INTERNET_CHECK bool "Enable the ability that check internet status" default y help The ability that check internet status is provided by RT-Thread. if RT_USING_LWIP || AT_USING_SOCKET menu "protocol stack implement" config SAL_USING_LWIP bool "Support lwIP stack" default y depends on RT_USING_LWIP config SAL_USING_AT bool "Support AT Commands stack" default y depends on AT_USING_SOCKET config SAL_USING_TLS bool "Support MbedTLS protocol" default y depends on PKG_USING_MBEDTLS endmenu endif config SAL_USING_POSIX bool "Enable BSD socket operated by file system API" default n select RT_USING_POSIX_FS select RT_USING_POSIX_SELECT help Let BSD socket operated by file system API, such as read/write and involveed in select/poll POSIX APIs. if !SAL_USING_POSIX config SAL_SOCKETS_NUM int "the maximum number of sockets" default 16 endif endif