Merge pull request #605 from carlosperate/i2c-read

facchinm · web-flow · commit d0b865c8356c · 2023-01-03T09:27:07.000+01:00
Wire: Fix return value for read() when there is no data available.
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() {`