alanorth/android_device_huawei_u8150 — comment on commit 7bd3fdb706312c2a45a396d7c2d1863d183c046b
File:  line 0
By alanorth:

Interesting, under the U8150 kernel we have:
`ls /sys/devices/platform/msm_hsusb/gadget
chg_current enableadb lun0 power switchusb usb_speed
chg_type fixusb lun1 sdstatus uevent usb_state`

But under the U8160 kernel we only get lun0. Weird...

From what I can tell, it looks like the `TARGET_USE_CUSTOM_LUN_FILE_PATH` should actually be the exact path. You might just be getting lucky that it hits lun0. See: system/vold/VolumeManager.cpp:1106