Device Drivers
USB support
USB Gadget Support
USB Gadget Drivers
Type <M> for "File-backed Storage Gadget", and select Save when you exit,
and compile the kernel again.
6.3.2 Compilation
Save configuration, execute the following commands to recompile kernel:
make uImage
make modules
After above operations are finished, a new kernel image uImage will be
generated under the directory arch/arm/boot, and a module file
g_file_storage.ko can be found under the directory drivers/usb/gadget.
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