From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Sun, 29 Dec 2013 00:35:03 +0000 (+0100)
Subject: Improved comments on error codes.
X-Git-Url: http://git.techno-innov.fr/?a=commitdiff_plain;h=c1ef9b8bdb1ad26c904a5d7ed970b6facb7fab30;p=soft%2Flpc122x%2Fcore

Improved comments on error codes.
---

diff --git a/include/core/system.h b/include/core/system.h
index be2e939..e978988 100644
--- a/include/core/system.h
+++ b/include/core/system.h
@@ -32,15 +32,21 @@
 
 
 /* Error Values, from glibc errno.h and errno-base.h */
-#define EIO          5 /* Bad one: Illegal start or stop, or illegal state in i2c state machine */
+#define EIO          5 /* Bad one: Input or Output error. */
 #define EAGAIN      11 /* Device already in use */
-#define EFAULT      14 /* address above eeprom size */
-#define EBUSY       16 /* Device or ressource Busy or Arbitration lost */
+#define EFAULT      14 /* Address error */
+#define EBUSY       16 /* Device or ressource Busy */
 #define ENODEV      19 /* No such device */
 #define EINVAL      22 /* Invalid argument */
 #define EBADFD      77 /* Device not initialized */
 #define EREMOTEIO  121 /* Device did not acknowledge */
 
+/* Note on error values for I2C :
+ *  EIO : Bad one: Illegal start or stop, or illegal state in i2c state machine
+ *  EFAULT : address above eeprom size
+ *  EBUSY : Device or ressource Busy or Arbitration lost
+ *  EREMOTEIO : Device did not acknowledge
+ */
 
 /***************************************************************************** */
 /*                       Power up defaults                                     */