Hi, I wanted to know if it's possible to send the CMD56 with the argument: [0] “1” (Read Mode) [1:7] “0010 000” (Index = 0x10) [8:31] All ‘0’ (Reserved) The code: int ret = 0; struct mmc_ioc_cmd idata; memset(&idata, 0, sizeof(idata)); memset(ext_csd, 0, sizeof(__u8) * 512); idata.write_flag = 0; idata.opcode = 56; idata.arg = 0x21; idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; idata.blksz = 512; idata.blocks = 1; mmc_ioc_cmd_set_data(idata, ext_csd); I want to get: byte[96-97] Endurance (Remain Life) (%) is it possible ? -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html