3.7.9. mmc_extcsd - Read/write the extended CSD register.

3.7.9.1. Usage

mmc_extcsd dev [-r | -b | -i index [-r | -v value [-y]]]

3.7.9.2. Options

-i field index of the register
-r print the register as raw data
-v value which will be written
-y don’t request when writing to one time programmable fields
-b set bkops-enable (EXT_CSD_BKOPS_EN[163])