}while(!(cmd.response[0] & OCR_BUSY) && timeout--);if(timeout <=0)returnUNUSABLE_ERR;if(mmc_host_is_spi(mmc)) {/* read OCR for spi */cmd.cmdidx = MMC_CMD_SPI_READ_OCR; cmd.resp_type = MMC_RSP_R3; cmd.cmdarg =0; cmd.flags =0; err = mmc_send_cmd(mmc, &cmd,NULL)...