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23 lines
364 B
23 lines
364 B
package main
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import (
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"fmt"
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"io"
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"os"
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)
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var devices map[string]io.ReadWriteCloser
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func GetDevice(name string) (io.ReadWriteCloser, error) {
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if dev, ok := devices[name]; ok {
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return dev, nil
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}
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dev, err := os.OpenFile("/dev/" + name, os.O_RDWR, 0644)
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if err != nil {
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return nil, fmt.Errorf("open: %w", err)
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}
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devices[name] = dev
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return dev, nil
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}
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