// Open a handle to the RTLSDR device
func Open(index int) (*Radio, error) {
dev := NewRadio()
// Possible return values:
// * 0 on success
// * -ENOMEM
// RTLSDR_API int rtlsdr_open(rtlsdr_dev_t **dev, uint32_t index);
retval := C.rtlsdr_open(&dev.devptr, C.uint32_t(index))
if retval != 0 {
defer dev.Cleanup()
return nil, fmt.Errorf("rtlsdr_open returned error value: %d", retval)
}
return dev, nil
}
// Open returns a valid device's context.
//
// int rtlsdr_open(rtlsdr_dev_t **dev, uint32_t index);
// rtlsdr_open returns 0 on success
func Open(index int) (c *Context, err int) {
c = &Context{}
err = int(C.rtlsdr_open((**C.rtlsdr_dev_t)(&c.dev),
C.uint32_t(index)))
return
}
// Open returns an opened device by index.
func Open(index int) (*Context, error) {
var dev *C.rtlsdr_dev_t
i := int(C.rtlsdr_open((**C.rtlsdr_dev_t)(&dev),
C.uint32_t(index)))
return (*Context)(dev), libError(i)
}