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devices
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Update ds248x.go

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pull/13/head
Audrius Paskevicius 5 years ago committed by GitHub
parent f16c5a2db9
commit 6a64ebcefc
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 8 deletions
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16
ds248x/ds248x.go
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@ -179,8 +179,8 @@ func (d *Dev) ChannelSelect(ch int) error {
var err error = nil var err error = nil
switch d.isDS248x { switch d.isDS248x {
case isDS2482x100: case isDS2482x100:
err = errors.New("unsupported (ds2482-100 has only channel 0)") // err = errors.New("unsupported (ds2482-100 has only channel 0)")
return fmt.Errorf("ds2482-100: error while selecting channel: %s", err) // return fmt.Errorf("ds2482-100: error while selecting channel: %s", err)
case isDS2482x800: case isDS2482x800:
if ch < 0 || ch > 7 { if ch < 0 || ch > 7 {
err = errors.New("channel out of range 0...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) return fmt.Errorf("ds2482-800: error while selecting channel: %s", err)
} }
case isDS2483: case isDS2483:
err = errors.New("unsupported (ds2483 has only channel 0)") // err = errors.New("unsupported (ds2483 has only channel 0)")
return fmt.Errorf("ds2483: error while selecting channel: %s", err) // return fmt.Errorf("ds2483: error while selecting channel: %s", err)
default: default:
err = errors.New("wrong chip") err = errors.New("wrong chip")
return fmt.Errorf("ds248x: error while selecting channel: %s", err) 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 { if err := d.i2c.Tx([]byte{cmdSetReadPtr, regCSR}, sch[:]); err != nil {
return 255 return 255
} }
ch = bytes.Index(cscr, []byte{sch[0]}) ch = bytes.Index(cscr[:], sch[:])
if ch < 0 { if ch < 0 {
return 255 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 // 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. // configuration register, such as the ds2482-100 or ds2482-800.
if d.i2c.Tx([]byte{cmdSetReadPtr, regPCR}, nil) == nil { if d.i2c.Tx([]byte{cmdSetReadPtr, regPCR}, nil) == nil {
d.isDS248x = isDS2483 d.isDS248x = isDS2483
@ -365,7 +365,7 @@ func (d *Dev) makeDev(opts *Opts) error {
} }
} else { } else {
// Set the read ptr to the channel selection register to determine whether we have a // 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. // selection register, such as the ds2482-100.
if d.i2c.Tx([]byte{cmdSetReadPtr, regCSR}, nil) == nil { if d.i2c.Tx([]byte{cmdSetReadPtr, regCSR}, nil) == nil {
d.isDS248x = isDS2482x800 d.isDS248x = isDS2482x800
@ -435,4 +435,4 @@ const (
) )
var cscw = [...]byte{cscIO0w, cscIO1w, cscIO2w, cscIO3w, cscIO4w, cscIO5w, cscIO6w, cscIO7w} 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}

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