Returns available device names and their parameters.
@note: Some devices may accept system-dependent device names that cannot be
autodetected. The list returned by this function cannot be assumed to
be always completed.
@param s device context.
@paramout device_list list of autodetected devices.
@return count of autodetected devices, negative on error.
List devices.
Returns available device names and their parameters.
@note: Some devices may accept system-dependent device names that cannot be autodetected. The list returned by this function cannot be assumed to be always completed.
@param s device context. @paramout device_list list of autodetected devices. @return count of autodetected devices, negative on error.