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Documentation / mmc / mmc-tools.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.

1	MMC tools introduction
2	======================
3	
4	There is one MMC test tools called mmc-utils, which is maintained by Chris Ball,
5	you can find it at the below public git repository:
6	http://git.kernel.org/cgit/linux/kernel/git/cjb/mmc-utils.git/
7	
8	Functions
9	=========
10	
11	The mmc-utils tools can do the following:
12	 - Print and parse extcsd data.
13	 - Determine the eMMC writeprotect status.
14	 - Set the eMMC writeprotect status.
15	 - Set the eMMC data sector size to 4KB by disabling emulation.
16	 - Create general purpose partition.
17	 - Enable the enhanced user area.
18	 - Enable write reliability per partition.
19	 - Print the response to STATUS_SEND (CMD13).
20	 - Enable the boot partition.
21	 - Set Boot Bus Conditions.
22	 - Enable the eMMC BKOPS feature.
23	 - Permanently enable the eMMC H/W Reset feature.
24	 - Permanently disable the eMMC H/W Reset feature.
25	 - Send Sanitize command.
26	 - Program authentication key for the device.
27	 - Counter value for the rpmb device will be read to stdout.
28	 - Read from rpmb device to output.
29	 - Write to rpmb device from data file.
30	 - Enable the eMMC cache feature.
31	 - Disable the eMMC cache feature.
32	 - Print and parse CID data.
33	 - Print and parse CSD data.
34	 - Print and parse SCR data.
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