Luns in mass storage function are identified using their id. While creating lun's directory user cannot choose any arbitrary name other than decimal value from 1 to FSG_MAX_LUNS. Moreover, LUNs ids should be contiguous. This means that user may remove only lun with max id and can create new lun only if its id equals to max id + 1. Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> --- .../ABI/testing/configfs-usb-gadget-mass-storage | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage index 9931fb0..2bf085d 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage +++ b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage @@ -11,10 +11,15 @@ Description: are 2..4. Available only if CONFIG_USB_GADGET_DEBUG_FILES is set. -What: /config/usb-gadget/gadget/functions/mass_storage.name/lun.name +What: /config/usb-gadget/gadget/functions/mass_storage.name/lun.id Date: Oct 2013 KernelVersion: 3.13 Description: + id - decimal value from 1 to FSG_MAX_LUNS + (which is 8 by default) - 1. LUNs should be numbered contiguously. + lun.0 is reserved for default lun which appears while creating + mass_storage.name directory and cannot be removed by the user. + The attributes: file - The path to the backing file for the LUN. -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html