|  | What:		/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_offset | 
|  | Date:		January 2011 | 
|  | Contact:	Chuanxiao Dong <chuanxiao.dong@intel.com> | 
|  | Description: | 
|  | Enhanced area is a new feature defined in eMMC4.4 standard. | 
|  | eMMC4.4 or later card can support such feature. This kind of | 
|  | area can help to improve the card performance. If the feature | 
|  | is enabled, this attribute will indicate the start address of | 
|  | enhanced data area. If not, this attribute will be -EINVAL. | 
|  | Unit Byte. Format decimal. | 
|  |  | 
|  | What:		/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_size | 
|  | Date:		January 2011 | 
|  | Contact:	Chuanxiao Dong <chuanxiao.dong@intel.com> | 
|  | Description: | 
|  | Enhanced area is a new feature defined in eMMC4.4 standard. | 
|  | eMMC4.4 or later card can support such feature. This kind of | 
|  | area can help to improve the card performance. If the feature | 
|  | is enabled, this attribute will indicate the size of enhanced | 
|  | data area. If not, this attribute will be -EINVAL. | 
|  | Unit KByte. Format decimal. |