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"System cannot find the file specified" when the port Address number is greater than 10 #13

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"System cannot find the file specified" when the port Address number is greater than 10 #13

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14 changes: 9 additions & 5 deletions serial_windows.go
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Original file line number Diff line number Diff line change
Expand Up @@ -156,13 +156,17 @@ func (p *port) setSerialConfig(c *Config) error {
}

func newHandle(c *Config) (handle syscall.Handle, err error) {
name := c.Address
if len(name) > 0 && name[0] != '\\' {
name = "\\\\.\\" + name
}
handle, err = syscall.CreateFile(
syscall.StringToUTF16Ptr(c.Address),
syscall.StringToUTF16Ptr(name),
syscall.GENERIC_READ|syscall.GENERIC_WRITE,
0, // mode
nil, // security
0, // mode
nil, // security
syscall.OPEN_EXISTING, // create mode
0, // attributes
0) // templates
0, // attributes
0) // templates
return
}