Added notes on stdio.

2016-09-22 18:20:40 +10:00 · 2016-09-22 18:20:40 +10:00 · 1f073e8b3f
parent d369953328
commit 1f073e8b3f
1 changed files with 3 additions and 1 deletions
--- a/docs/en/extn-developer-faq.md
+++ b/docs/en/extn-developer-faq.md
@ -12,7 +12,9 @@ This is a non-exhaustive list, obviously, but some key points are:

  - **A real C library**. All the `os_`, `ets_` and `c_` prefixes for
    standard library functions are gone (except for the special case
-    c_getenv, for now).
+    c_getenv, for now). stdout/stdin are wired up to the UART0 console.
+    The NodeMCU vfs layer is not currently hooked up to the C library,
+    but that would be a nice thing to do.

  - **Everything builds on at least C99 level**, with plenty of warnings
    enabled. Fix the code so it doesn't produce warnings - don't turn