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-rw-r--r--README3
1 files changed, 3 insertions, 0 deletions
diff --git a/README b/README
index 584dcc8..a822bda 100644
--- a/README
+++ b/README
@@ -63,6 +63,9 @@ not to use files named like this for your own code. i.e. if you want
to use the `led` library it's not possible to have a source file name
lib-led.c inside your project.
+The anyio lib provides a failover between serial and usb-serial (using LUFA)
+streams. It's not safe to use any STDIO functions inside interrupts.
+
To use LUFA in your project you have to provide the path to the LUFA
source code. You may do this by calling `make` inside the contrib tree.
But any external path is ok. In order to build the lufa object file the