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0001 What:           /sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_offset
0002 Date:           January 2011
0003 Contact:        Chuanxiao Dong <chuanxiao.dong@intel.com>
0004 Description:
0005                 Enhanced area is a new feature defined in eMMC4.4 standard.
0006                 eMMC4.4 or later card can support such feature. This kind of
0007                 area can help to improve the card performance. If the feature
0008                 is enabled, this attribute will indicate the start address of
0009                 enhanced data area. If not, this attribute will be -EINVAL.
0010                 Unit Byte. Format decimal.
0011 
0012 What:           /sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_size
0013 Date:           January 2011
0014 Contact:        Chuanxiao Dong <chuanxiao.dong@intel.com>
0015 Description:
0016                 Enhanced area is a new feature defined in eMMC4.4 standard.
0017                 eMMC4.4 or later card can support such feature. This kind of
0018                 area can help to improve the card performance. If the feature
0019                 is enabled, this attribute will indicate the size of enhanced
0020                 data area. If not, this attribute will be -EINVAL.
0021                 Unit KByte. Format decimal.