Wire: Fix return value for read() when there is no data available.

carlosperate · carlosperate · commit c0cf01cbbf0f · 2023-01-02T23:46:35.000Z
diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
@@ -120,7 +120,7 @@ int arduino::MbedI2C::read() {
 	if (rxBuffer.available()) {
 		return rxBuffer.read_char();
 	}
-	return 0;
+	return -1;
 }
 
 int arduino::MbedI2C::available() {

Original file line number	Diff line number	Diff line change
`@@ -120,7 +120,7 @@ int arduino::MbedI2C::read() {`
`120`	`120`	`if (rxBuffer.available()) {`
`121`	`121`	`return rxBuffer.read_char();`
`122`	`122`	`}`
`123`		`- return 0;`
	`123`	`+ return -1;`
`124`	`124`	`}`
`125`	`125`
`126`	`126`	`int arduino::MbedI2C::available() {`