feat: Add method for opening devices

This commit is contained in:
ptrcnull 2021-11-29 22:13:48 +01:00
parent 945b295bdf
commit 6c8e8c3003

23
device.go Normal file
View file

@ -0,0 +1,23 @@
package main
import (
"fmt"
"io"
"os"
)
var devices map[string]io.ReadWriteCloser
func GetDevice(name string) (io.ReadWriteCloser, error) {
if dev, ok := devices[name]; ok {
return dev, nil
}
dev, err := os.OpenFile("/dev/" + name, os.O_RDWR, 0644)
if err != nil {
return nil, fmt.Errorf("open: %w", err)
}
devices[name] = dev
return dev, nil
}