diff --git a/ds248x/ds248x.go b/ds248x/ds248x.go
index 99d8059..421dc4f 100644
--- a/ds248x/ds248x.go
+++ b/ds248x/ds248x.go
@@ -179,8 +179,8 @@ func (d *Dev) ChannelSelect(ch int) error {
 	var err error = nil
 	switch d.isDS248x {
 	case isDS2482x100:
-		err = errors.New("unsupported (ds2482-100 has only channel 0)")
-		return fmt.Errorf("ds2482-100: error while selecting channel: %s", err)
+		// err = errors.New("unsupported (ds2482-100 has only channel 0)")
+		// return fmt.Errorf("ds2482-100: error while selecting channel: %s", err)
 	case isDS2482x800:
 		if ch < 0 || ch > 7 {
 			err = errors.New("channel out of range 0...7")
@@ -191,8 +191,8 @@ func (d *Dev) ChannelSelect(ch int) error {
 			return fmt.Errorf("ds2482-800: error while selecting channel: %s", err)
 		}
 	case isDS2483:
-		err = errors.New("unsupported (ds2483 has only channel 0)")
-		return fmt.Errorf("ds2483: error while selecting channel: %s", err)
+		// err = errors.New("unsupported (ds2483 has only channel 0)")
+		// return fmt.Errorf("ds2483: error while selecting channel: %s", err)
 	default:
 		err = errors.New("wrong chip")
 		return fmt.Errorf("ds248x: error while selecting channel: %s", err)
@@ -214,7 +214,7 @@ func (d *Dev) SelectedChannel() int {
 		if err := d.i2c.Tx([]byte{cmdSetReadPtr, regCSR}, sch[:]); err != nil {
 			return 255
 		}
-		ch = bytes.Index(cscr, []byte{sch[0]})
+		ch = bytes.Index(cscr[:], sch[:])
 		if ch < 0 {
 			return 255
 		}
@@ -349,7 +349,7 @@ func (d *Dev) makeDev(opts *Opts) error {
 	}
 
 	// Set the read ptr to the port configuration register to determine whether we have a
-	// ds2483 vs ds2482-100 or ds2482-800. This will fail on devices that do not have a port 
+	// ds2483 vs ds2482-100 or ds2482-800. This will fail on devices that do not have a port
 	// configuration register, such as the ds2482-100 or ds2482-800.
 	if d.i2c.Tx([]byte{cmdSetReadPtr, regPCR}, nil) == nil {
 		d.isDS248x = isDS2483
@@ -365,7 +365,7 @@ func (d *Dev) makeDev(opts *Opts) error {
 		}
 	} else {
 		// Set the read ptr to the channel selection register to determine whether we have a
-		// ds2482-800 vs ds2482-100. This will fail on devices that do not have a channel 
+		// ds2482-800 vs ds2482-100. This will fail on devices that do not have a channel
 		// selection register, such as the ds2482-100.
 		if d.i2c.Tx([]byte{cmdSetReadPtr, regCSR}, nil) == nil {
 			d.isDS248x = isDS2482x800
@@ -435,4 +435,4 @@ const (
 )
 
 var cscw = [...]byte{cscIO0w, cscIO1w, cscIO2w, cscIO3w, cscIO4w, cscIO5w, cscIO6w, cscIO7w}
-var cscr = []byte{cscIO0r, cscIO1r, cscIO2r, cscIO3r, cscIO4r, cscIO5r, cscIO6r, cscIO7r}
+var cscr = [...]byte{cscIO0r, cscIO1r, cscIO2r, cscIO3r, cscIO4r, cscIO5r, cscIO6r, cscIO7r}