USB_GADGET

sudo zgrep USB_GADGET /proc/config.gz
# CONFIG_USB_MUSB_GADGET is not set
CONFIG_USB_GADGET=m
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
CONFIG_USB_GADGETFS=m
# CONFIG_USB_GADGET_TARGET is not set


sudo modinfo g_mass_storage
filename:       /lib/modules/4.12.8-2-custom/kernel/drivers/usb/gadget/legacy/g_mass_storage.ko.gz
license:        GPL
author:         Michal Nazarewicz
description:    Mass Storage Gadget
depends:        usb_f_mass_storage,libcomposite
intree:         Y
vermagic:       4.12.8-2-custom SMP preempt mod_unload modversions
parm:           idVendor:USB Vendor ID (ushort)
parm:           idProduct:USB Product ID (ushort)
parm:           bcdDevice:USB Device version (BCD) (ushort)
parm:           iSerialNumber:SerialNumber string (charp)
parm:           iManufacturer:USB Manufacturer string (charp)
parm:           iProduct:USB Product string (charp)
parm:           file:names of backing files or devices (array of charp)
parm:           ro:true to force read-only (array of bool)
parm:           removable:true to simulate removable media (array of bool)
parm:           cdrom:true to simulate CD-ROM instead of disk (array of bool)
parm:           nofua:true to ignore SCSI WRITE(10,12) FUA bit (array of bool)
parm:           luns:number of LUNs (uint)
parm:           stall:false to prevent bulk stalls (bool)