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gpio: don't fail if pin is already exported
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938a071c1a
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@ -10,6 +10,7 @@ import (
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"os"
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"path"
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"strconv"
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"syscall"
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"time"
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"github.com/kidoman/embd"
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@ -69,6 +70,9 @@ func (p *digitalPin) export() error {
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}
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defer exporter.Close()
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_, err = exporter.WriteString(strconv.Itoa(p.n))
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if e, ok := err.(*os.PathError); ok && e.Err == syscall.EBUSY {
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return nil // EBUSY -> the pin has already been exported
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}
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return err
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}
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