* * 当返回值为SIE_OK时,非空指针指向的内存区域存储了返回值 */enumsinkinfo_error_eget_sinkinfo_sample_data(intem_no,enumsinkinfo_cmd_e cmd,void*data_buf,intlen){enumsinkinfo_error_e ret = SIE_OK;if(len < SINK_INFO_PX_SAMPLE_BUF_SIZE) { printf_syn("func:%s, buf too small(%d)\...