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Merge 780d9e92ac into d3d8c0c5c6

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This commit is contained in:
Tero Marttila 2017-05-19 16:10:25 +00:00 • committed by GitHub
commit daeb225a4c
1 changed files with 14 additions and 0 deletions
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14
host/generic/digitalpin.go
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@ -63,7 +63,21 @@ func (p *digitalPin) init() error {
return nil
}
func (p *digitalPin) isExported() bool {
if _, err := os.Stat(p.basePath()); err == nil {
return true
} else if os.IsNotExist(err) {
return false
} else {
// unknown
return false
}
}
func (p *digitalPin) export() error {
if p.isExported() {
return nil
}
exporter, err := os.OpenFile("/sys/class/gpio/export", os.O_WRONLY, os.ModeExclusive)
if err != nil {
return err