[j.p.s]

Originally Posted by lucasmpr

[root@kindle root]# ls -l /lib/modules/$(uname -r)/kernel/drivers/usb/
drwxr-xr-x    2 root     root          1024 Jan 16  2017 gadget
[root@kindle root]# cd gadget
-sh: cd: can't cd to gadget
[root@kindle root]# ls -l /lib/modules/$(uname -r)/kernel/drivers/usb/gadget
-rw-r--r--    1 root     root        130046 Jan 16  2017 g_android.ko
-rw-r--r--    1 root     root         42904 Jan 16  2017 g_ether.ko
-rw-r--r--    1 root     root         42534 Jan 16  2017 g_mass_storage.ko
-rw-r--r--    1 root     root         43696 Jan 16  2017 libcomposite.ko
-rw-r--r--    1 root     root         15116 Jan 16  2017 u_serial.ko
-rw-r--r--    1 root     root          9874 Jan 16  2017 usb_f_acm.ko
[root@kindle root]#

Then you want to

modprobe g_mass_storage