to_apr_device
struct apr_device *adev = to_apr_device(dev);
struct apr_device *adev = to_apr_device(dev);
struct apr_device *adev = to_apr_device(dev);
struct apr_device *adev = to_apr_device(dev);
const struct apr_device *adev = to_apr_device(dev);
struct apr_device *adev = to_apr_device(dev);