[KConfig] Change the RT_DFS_ELM_USE_LFN cfg to choice.
@@ -29,15 +29,29 @@ if RT_USING_DFS
int "OEM code page"
default 437
+ choice
+ prompt "Support long file name"
+ default RT_DFS_ELM_USE_LFN_0
+
+ config RT_DFS_ELM_USE_LFN_0
+ bool "0: LFN disable"
+
+ config RT_DFS_ELM_USE_LFN_1
+ bool "1: LFN with static LFN working buffer"
+
+ config RT_DFS_ELM_USE_LFN_2
+ bool "2: LFN with dynamic LFN working buffer on the stack"
+
+ config RT_DFS_ELM_USE_LFN_3
+ bool "3: LFN with dynamic LFN working buffer on the heap"
+ endchoice
+
config RT_DFS_ELM_USE_LFN
- int "Support long file name"
- default 0
- range 0 3
- help
- 0: LFN disable
- 1: LFN with static LFN working buffer
- 2: LFN with dynamic LFN working buffer on the stack
- 3: LFN with dynamic LFN working buffer on the heap
+ int
+ default 0 if RT_DFS_ELM_USE_LFN_0
+ default 1 if RT_DFS_ELM_USE_LFN_1
+ default 2 if RT_DFS_ELM_USE_LFN_2
+ default 3 if RT_DFS_ELM_USE_LFN_3
config RT_DFS_ELM_MAX_LFN
int "Maximal size of file name length"
