Commit 25582037 authored by Philippe De Swert's avatar Philippe De Swert

[usb-moded] Document broken android kernel behaviour

Documented what happens when the -a switch is used to make
sure usb_moded works when the kernel cable detection/charging
is "broken" by non-active android gadgets.
Signed-off-by: default avatarPhilippe De Swert <philippe.deswert@jollamobile.com>
parent c9e5cbe0
......@@ -315,6 +315,21 @@ softconnect = 1
softconnec_disconnect = 0
idProduct = 0002
Android portability
---------------------
On some android kernels cable detection/charging etc is broken unless the gadget is active.
Often this is weirdly done on purpose by checking if the gadget is active before doing anything.
This is not recommend and is actually wrong. Not to mention all the potential issues this could cause.
(extra power drain, suspend issues, accidental exposure of data over USB, ...)
For this purpose there is the -a switch that activates by default the charging mode, and will set it
on disconnect. So technically unless you connect and set some mode, the gadget will always be active
in the fake mass-storage charging mode.
WARNING: This could potentially expose data over mass-storage (TODO, make sure this does not happen)
rescue mode
-----------
......
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