BBB LED blinking

gistfile1.go

package main

import (
    "fmt"
    "time"
    "github.com/marcomonteiro/embd"
)

func main() {
    host, rev, err := embd.DetectHost()
    if (err != nil) {
        fmt.Println(err)
        return;
    }

    fmt.Printf("%+v %+v\n", string(host), string(rev))
    fmt.Println("Blinking...")

    embd.InitLED()
    defer embd.CloseLED()

    led, err := embd.NewLED(3)
    if (err != nil) {
        fmt.Println("Error creating LED")
        fmt.Println(err)
    }

    for  {
        led.Toggle()
        time.Sleep(1000 * time.Millisecond)
    }
    fmt.Println("Done, see ya later!")
}

And I'm getting:

debian@beaglebone:~$ ./beagle
BeagleBone Black
Blinking...
Error creating LED
host: invalid host "BeagleBone Black"
panic: runtime error: invalid memory address or nil pointer dereference
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x14 pc=0x65490]

goroutine 1 [running]:
runtime.panic(0xd6668, 0x1c7f28)
/usr/local/Cellar/go/1.2.2/libexec/src/pkg/runtime/panic.c:266 +0x134
github.com/marcomonteiro/embd.CloseLED(0xb6f36740, 0x10500510)
/Users/marco/go/src/github.com/marcomonteiro/embd/led.go:54 +0x30
runtime.panic(0xd6668, 0x1c7f28)
/usr/local/Cellar/go/1.2.2/libexec/src/pkg/runtime/panic.c:248 +0xa4
main.main()
/Users/marco/go/src/github.com/user/beagle/beagle.go:29 +0x440

goroutine 3 [chan receive]:
github.com/golang/glog.(*loggingT).flushDaemon(0x1ca988)
/Users/marco/go/src/github.com/golang/glog/glog.go:839 +0x54
created by github.com/golang/glog.init·1
/Users/marco/go/src/github.com/golang/glog/glog.go:406 +0x2f8