| What:		/config/usb-gadget/gadget/functions/mass_storage.name | 
 | Date:		Oct 2013 | 
 | KernelVersion:	3.13 | 
 | Description: | 
 | 		The attributes: | 
 |  | 
 | 		===========	============================================== | 
 | 		stall		Set to permit function to halt bulk endpoints. | 
 | 				Disabled on some USB devices known not to work | 
 | 				correctly. You should set it to true. | 
 | 		num_buffers	Number of pipeline buffers. Valid numbers | 
 | 				are 2..4. Available only if | 
 | 				CONFIG_USB_GADGET_DEBUG_FILES is set. | 
 | 		===========	============================================== | 
 |  | 
 | What:		/config/usb-gadget/gadget/functions/mass_storage.name/lun.name | 
 | Date:		Oct 2013 | 
 | KernelVersion:	3.13 | 
 | Description: | 
 | 		The attributes: | 
 |  | 
 | 		===========	============================================== | 
 | 		file		The path to the backing file for the LUN. | 
 | 				Required if LUN is not marked as removable. | 
 | 		ro		Flag specifying access to the LUN shall be | 
 | 				read-only. This is implied if CD-ROM emulation | 
 | 				is enabled as well as when it was impossible | 
 | 				to open "filename" in R/W mode. | 
 | 		removable	Flag specifying that LUN shall be indicated as | 
 | 				being removable. | 
 | 		cdrom		Flag specifying that LUN shall be reported as | 
 | 				being a CD-ROM. | 
 | 		nofua		Flag specifying that FUA flag | 
 | 				in SCSI WRITE(10,12) | 
 | 		===========	============================================== |