apply @gen2thomas suggestions

ft6336/ft6336.go

@@ -12,10 +12,10 @@ import (
 
 // Device wraps FT6336 I2C Self-Capacitive touch
 type Device struct {
-	bus     drivers.I2C
-	buf     []byte
-	Address uint8
-	config  func()
+	bus           drivers.I2C
+	buf           []byte
+	Address       uint8
+	configurePins func()
 }
 
 // New returns FT6336 device for the provided I2C bus using default address.
@@ -24,7 +24,7 @@ func New(i2c drivers.I2C, intPin legacy.PinInput) *Device {
 		bus:     i2c,
 		buf:     make([]byte, 11),
 		Address: Address,
-		config: func() {
+		configurePins: func() {
 			legacy.ConfigurePinInputPulldown(intPin)
 		},
 	}
@@ -36,11 +36,11 @@ type Config struct {
 
 // Configure the FT6336 device.
 func (d *Device) Configure(config Config) error {
-	if d.config == nil {
+	if d.configurePins == nil {
 		return legacy.ErrConfigBeforeInstantiated
 	}
 	d.write1Byte(0xA4, 0x00)
-	d.config()
+	d.configurePins()
 	return nil
 }