maXTouch: Fix test of I2C_TRANSFER return value

2014-07-06 08:51:38 -06:00 · 2014-07-06 08:51:38 -06:00 · 56629f7fde
commit 56629f7fde
parent 87055cff08
1 changed files with 3 additions and 0 deletions
--- a/arch/arm/src/sama5/sam_twi.c
+++ b/arch/arm/src/sama5/sam_twi.c
@ -1027,6 +1027,9 @@ static int twi_registercallback(FAR struct i2c_dev_s *dev,
 *   Receive a block of data on I2C using the previously selected I2C
 *   frequency and slave address.
 *
+ * Returned Value:
+ *   Returns zero on success; a negated errno value on failure.
+ *
 *******************************************************************************/

 #ifdef CONFIG_I2C_TRANSFER