Merge pull request #57 from soburi/wire_requestfrom_always_return_zero

soburi · web-flow · commit 641482dc2875 · 2017-09-19T23:10:03.000+09:00
Fix #56, Correcting the problem that TwoWire::requestFrom() return value always zero
diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
@@ -81,7 +81,7 @@ uint8_t TwoWire::requestFrom(uint8_t address, size_t quantity, bool stopBit)
   if(i2c->start(i2c->devinfo, address, WIRE_READ_FLAG))
   {
 
-    i2c->read_bytes(i2c->devinfo, rxBuffer._aucBuffer, quantity);
+    byteRead = i2c->read_bytes(i2c->devinfo, rxBuffer._aucBuffer, quantity);
     rxBuffer._iHead = quantity;
 
     if (stopBit)

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ uint8_t TwoWire::requestFrom(uint8_t address, size_t quantity, bool stopBit)`
`81`	`81`	`if(i2c->start(i2c->devinfo, address, WIRE_READ_FLAG))`
`82`	`82`	`{`
`83`	`83`
`84`		`- i2c->read_bytes(i2c->devinfo, rxBuffer._aucBuffer, quantity);`
	`84`	`+ byteRead = i2c->read_bytes(i2c->devinfo, rxBuffer._aucBuffer, quantity);`
`85`	`85`	`rxBuffer._iHead = quantity;`
`86`	`86`
`87`	`87`	`if (stopBit)`