rename busy fields to isBusy

waveshare-epd/epd2in66b/dev.go

@@ -18,11 +18,11 @@ const (
 const Baudrate = 4_000_000 // 4 MHz
 
 type Device struct {
-	bus  drivers.SPI
-	cs   drivers.PinOutput
-	dc   drivers.PinOutput
-	rst  drivers.PinOutput
-	busy drivers.PinInput
+	bus    drivers.SPI
+	cs     drivers.PinOutput
+	dc     drivers.PinOutput
+	rst    drivers.PinOutput
+	isBusy drivers.PinInput
 
 	blackBuffer []byte
 	redBuffer   []byte
@@ -206,7 +206,7 @@ func (d *Device) WaitUntilIdle() {
 	// give it some time to get busy
 	time.Sleep(50 * time.Millisecond)
 
-	for d.busy() { // high = busy
+	for d.isBusy() { // high = busy
 		time.Sleep(10 * time.Millisecond)
 	}
 

waveshare-epd/epd2in66b/dev_baremetal.go

@@ -25,6 +25,6 @@ func (d *Device) Configure(c Config) error {
 	d.cs = cs.Set
 	d.dc = dc.Set
 	d.rst = rst.Set
-	d.busy = busy.Get
+	d.isBusy = busy.Get
 	return nil
 }