From: Martin Ling <redacted>
Date: Sun, 24 May 2015 12:47:09 +0000 (+0100)
Subject: doc: Additional notes on sp_last_error_{code,message}.
X-Git-Tag: libserialport-0.1.1~25
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=ec4b55ae25c368e30a5db6ab6cb33bb6abeca46c;p=libserialport.git

doc: Additional notes on sp_last_error_{code,message}.
---

diff --git a/libserialport.h.in b/libserialport.h.in
index a4bd00e..c8defbe 100644
--- a/libserialport.h.in
+++ b/libserialport.h.in
@@ -1335,6 +1335,8 @@ enum sp_return sp_end_break(struct sp_port *port);
  *
  * In order to obtain the correct result, this function should be called
  * straight after the failure, before executing any other system operations.
+ * The result is thread-specific, and only valid when called immediately
+ * after a previous call returning SP_ERR_FAIL.
  *
  * @return The system's numeric code for the error that caused the last
  *         operation to fail.
@@ -1348,6 +1350,8 @@ int sp_last_error_code(void);
  *
  * In order to obtain the correct result, this function should be called
  * straight after the failure, before executing other system operations.
+ * The result is thread-specific, and only valid when called immediately
+ * after a previous call returning SP_ERR_FAIL.
  *
  * @return The system's message for the error that caused the last
  *         operation to fail. This string may be allocated by the function,