linuxsd-cardmmc3

How to know ext-csd information of sd-card?


I have Googled a lot before posting the question here, but I did not found any firm answer or reason.

I want to know/read ext csd register information of a SD-Card. I know that mmc-utils is capable of showing that information in extcsd. But the mmc-utils does not seems to be working for sd-card to get extcsd information. I tried,

mmc extcsd read /dev/mmcblk1

result shows;

ioctl: Connection timed out

Could not read EXT_CSD from /dev/mmcblk1

Can anyone suggest any work-around to work mmc-utils for sd-cards?

Or Does anyone can refer to such linux tool to monitor sd-card information?

Or any health-monitor utility to serve my purpose?

Thanks in advance


Solution

  • SD-cards do not have the EXT_CSD register, only eMMCs does.