38 lines
770 B
Go
38 lines
770 B
Go
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package system
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import "fmt"
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type analogPinSysFs struct {
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sysfsPath string
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r, w bool
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sfa *sysfsFileAccess
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}
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func newAnalogPinSysfs(sfa *sysfsFileAccess, path string, r, w bool) *analogPinSysFs {
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p := &analogPinSysFs{
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sysfsPath: path,
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sfa: sfa,
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r: r,
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w: w,
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}
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return p
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}
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// Read reads a value from sysf path
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func (p *analogPinSysFs) Read() (int, error) {
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if !p.r {
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return 0, fmt.Errorf("the pin '%s' is not allowed to read", p.sysfsPath)
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}
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return p.sfa.readInteger(p.sysfsPath)
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}
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// Write writes a value to sysf path
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func (p *analogPinSysFs) Write(val int) error {
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if !p.w {
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return fmt.Errorf("the pin '%s' is not allowed to write (val: %v)", p.sysfsPath, val)
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}
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return p.sfa.writeInteger(p.sysfsPath, val)
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}
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