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Try gpiomem when /dev/mem is not found

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Nils Siegfried 2022-01-20 23:26:05 +01:00 committed by GitHub
parent d8d85b3536
commit 1c14b6e8af
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1 changed files with 1 additions and 1 deletions
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rpio.go
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@ -744,7 +744,7 @@ func Open() (err error) {
// Open fd for rw mem access; try dev/mem first (need root) // Open fd for rw mem access; try dev/mem first (need root)
file, err = os.OpenFile("/dev/mem", os.O_RDWR|os.O_SYNC, os.ModePerm) file, err = os.OpenFile("/dev/mem", os.O_RDWR|os.O_SYNC, os.ModePerm)
if os.IsPermission(err) { // try gpiomem otherwise (some extra functions like clock and pwm setting wont work) if os.IsNotExist(err) || os.IsPermission(err) { // try gpiomem otherwise (some extra functions like clock and pwm setting wont work)
file, err = os.OpenFile("/dev/gpiomem", os.O_RDWR|os.O_SYNC, os.ModePerm) file, err = os.OpenFile("/dev/gpiomem", os.O_RDWR|os.O_SYNC, os.ModePerm)
} }
if err != nil { if err != nil {