套件： mmc-utils (0+git20191004.73d6c59-2)

Userspace tools for MMC/SD devices

mmc-utils is a tool that supports the MMC device development of Linux kernel.

The mmc-utils tools can do the following:

 - Print and parse extcsd data.
 - Determine the eMMC writeprotect status.
 - Set the eMMC writeprotect status.
 - Set the eMMC data sector size to 4KB by disabling emulation.
 - Create general purpose partition.
 - Enable the enhanced user area.
 - Enable write reliability per partition.
 - Print the response to STATUS_SEND (CMD13).
 - Enable the boot partition.
 - Set Boot Bus Conditions.
 - Enable the eMMC BKOPS feature.
 - Permanently enable the eMMC H/W Reset feature.
 - Permanently disable the eMMC H/W Reset feature.
 - Send Sanitize command.
 - Program authentication key for the device.
 - Counter value for the rpmb device will be read to stdout.
 - Read from rpmb device to output.
 - Write to rpmb device from data file.
 - Enable the eMMC cache feature.
 - Disable the eMMC cache feature.
 - Print and parse CID data.
 - Print and parse CSD data.
 - Print and parse SCR data.