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1What: /config/usb-gadget/gadget/functions/mass_storage.name2Date: Oct 20133KernelVersion: 3.134Description:5 The attributes:6 7 =========== ==============================================8 stall Set to permit function to halt bulk endpoints.9 Disabled on some USB devices known not to work10 correctly. You should set it to true.11 num_buffers Number of pipeline buffers. Valid numbers12 are 2..4. Available only if13 CONFIG_USB_GADGET_DEBUG_FILES is set.14 =========== ==============================================15 16What: /config/usb-gadget/gadget/functions/mass_storage.name/lun.name17Date: Oct 201318KernelVersion: 3.1319Description:20 The attributes:21 22 ============ ==============================================23 file The path to the backing file for the LUN.24 Required if LUN is not marked as removable.25 ro Flag specifying access to the LUN shall be26 read-only. This is implied if CD-ROM emulation27 is enabled as well as when it was impossible28 to open "filename" in R/W mode.29 removable Flag specifying that LUN shall be indicated as30 being removable.31 cdrom Flag specifying that LUN shall be reported as32 being a CD-ROM.33 nofua Flag specifying that FUA flag34 in SCSI WRITE(10,12)35 forced_eject This write-only file is useful only when36 the function is active. It causes the backing37 file to be forcibly detached from the LUN,38 regardless of whether the host has allowed it.39 Any non-zero number of bytes written will40 result in ejection.41 ============ ==============================================42