56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
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package stty
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import (
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"fmt"
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"os/exec"
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)
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type stty struct {
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}
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func Get() (*stty, error) {
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checkSttyCMD := exec.Command("stty", "--version")
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sttyOutput, err := checkSttyCMD.Output()
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if err != nil || len(sttyOutput) == 0 {
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return nil, fmt.Errorf("Stty is missing. Because: " + err.Error())
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}
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return &stty{}, nil
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}
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func (s *stty) SetBaudRate(portPath string, baudrate int) error {
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setBaudRateCMD := exec.Command("stty", "-F", portPath, fmt.Sprint(baudrate))
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_, err := setBaudRateCMD.Output()
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return err
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}
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func (s *stty) CheckBaudRate(portPath string) (baudrate int, err error) {
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checkBaudRateCMD := exec.Command("stty", "-F", portPath, "speed")
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sttyOutput, err := checkBaudRateCMD.Output()
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if err != nil {
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return 0, fmt.Errorf("Failed to invoke stty. Because: " + err.Error())
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}
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_, err = fmt.Sscan(string(sttyOutput), &baudrate)
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if err != nil {
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return 0, fmt.Errorf("Failed to read baudrate from stty output. Because:" + err.Error())
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}
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return baudrate, nil
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}
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func (s *stty) TestBaudRate(portPath string, baudrate int) (bool, error) {
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err := s.SetBaudRate(portPath, baudrate)
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if err != nil {
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return false, fmt.Errorf("Failed to set baudrate using stty. Because: " + err.Error())
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}
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newBaudRate, err := s.CheckBaudRate(portPath)
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if err != nil {
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return false, fmt.Errorf("Failed to check baudrate using stty. Because: " + err.Error())
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}
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if newBaudRate == baudrate {
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return true, nil
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}
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return false, nil
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}
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