For instance, to set a "macaddr" when the new CONFIG_MTD_CONFIG_NAMED option is selected, you would do:
nsh> cfgdata set macaddr [0xfc 0x01 0x0b 0x45 0xa1 0x12] <-- brackets denotes an array of bytes
nsh> cfgdata set hostname myboard
or using the old ID,INSTANCE numeric method:
nsh> cfgdata set 0,0 [0xfc 0x01 0x0b 0x45 0xa1 0x12] <-- brackets denotes an array of bytes
nsh> cfgdata set 1,0 myboard
You can also display all config items:
nsh> cfgdata print all
Name Len Data
macaddr 6 0xFC 0x01 0x0B 0x45 0xA1 0x12
hostname 8 myboard