tlv493d: improved reset logging (#53)

tlv493d/tlv493d.go

@@ -194,7 +194,7 @@ func New(i i2c.Bus, opts *Opts) (*Dev, error) {
 
 // String implements conn.Resource.
 func (d *Dev) String() string {
-	return "TLV493D"
+	return fmt.Sprintf("TLV493D{i2c:0x%x}", d.i2c.Addr)
 }
 
 // Halt implements conn.Resource.
@@ -407,9 +407,9 @@ func (d *Dev) ReadContinuous(frequency physic.Frequency, precision Precision) (<
 					// Try resetting the sensor to recover from errors
 					if err := d.initialize(true); err == nil {
 						if err := d.SetMode(newMode); err != nil {
-							log.Println("Unable to reset TLV493D mode:", err)
+							log.Printf("%s: unable to reset tlv493d mode: %v", d, err)
 						} else {
-							log.Println("Sensor reset successfully")
+							log.Printf("%s: sensor reset successfully", d)
 						}
 					}
 					continue

tlv493d/tlv493d_test.go

@@ -52,7 +52,7 @@ func TestDev_String(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if s := d.String(); s != "TLV493D" {
+	if s := d.String(); s != "TLV493D{i2c:0x5e}" {
 		t.Fatal(s)
 	}
 	if err := d.Halt(); err != nil {