Hello, I’m reading the health info of a SD card: using 4.17.6-200.fc28.aarch64 on an rpi3 and rpi3+ with the following code segment ---------------------- struct mmc_ioc_cmd idata; char data_out[SD_BLOCK_SIZE]; memset(&idata, 0, sizeof(idata)); memset(&data_out[0], 0, sizeof(__u8) * SD_BLOCK_SIZE); idata.write_flag = 1; idata.opcode = SD_GEN_CMD; idata.arg = cmd56_arg; idata.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; idata.blksz = SD_BLOCK_SIZE; idata.blocks = 1; mmc_ioc_cmd_set_data(idata, data_out); ret = ioctl(fd, MMC_IOC_CMD, &idata); ---------------------- leads to Jul 20 18:23:53 ogi-it-rpi-p kernel: sdhost-bcm2835 3f202000.mmc: timeout waiting for hardware interrupt. Jul 20 18:23:53 ogi-it-rpi-p kernel: sdhost-bcm2835 3f202000.mmc: __mmc_blk_ioctl_cmd: data error -110 this was flawlessly working in fc27 which should be the 4.16 kernel i think Actually this is the first of 2 consecutive commands send to the card; If I ignore the above error and continue with the second command I can successfully read the health data. The problem is that the above command takes 10 seconds (timeout) before it throws the above error… Actually it is not expected to get any data from the above write command… Maybe I have set the wrong flags or did something change between 4.16 and 4.17.6 Any ideas? Thanks a lot Ognian -- 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
