Allow devices to override USB init
This enables devices to provide their own USB configuration. The
contents of init.recovery.usb.rc can most simply be modified and
included in a device's init.recovery.${ro.hardware}.rc.
Use option:
TW_EXCLUDE_DEFAULT_USB_INIT := true
Rationale: Some devices handle USB pid switching in the kernel. In this
case, USB init provides switching functions which differ from the
standard on property:sys.usb.config=xyz. Other devices should not see
USB attempt mtp,adb mode when TW_EXCLUDE_MTP is set.
Cherry-picked from android-5.0
Change-Id: Ief0fcaf46a1782102166fc1b733a34b1a1ba0802
diff --git a/etc/init.recovery.usb.rc b/etc/init.recovery.usb.rc
new file mode 100644
index 0000000..b4a852a
--- /dev/null
+++ b/etc/init.recovery.usb.rc
@@ -0,0 +1,38 @@
+on fs
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/idVendor 18D1
+ write /sys/class/android_usb/android0/idProduct 4EE2
+ write /sys/class/android_usb/android0/f_ffs/aliases adb
+ write /sys/class/android_usb/android0/functions mtp,adb
+ write /sys/class/android_usb/android0/iManufacturer ${ro.product.manufacturer}
+ write /sys/class/android_usb/android0/iProduct ${ro.product.model}
+ write /sys/class/android_usb/android0/iSerial ${ro.serialno}
+
+on property:sys.storage.ums_enabled=1
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/functions mass_storage,adb
+ write /sys/class/android_usb/android0/enable 1
+
+on property:sys.storage.ums_enabled=0
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/functions ${sys.usb.config}
+ write /sys/class/android_usb/android0/enable ${service.adb.root}
+
+on property:sys.usb.config=none
+ stop adbd
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/bDeviceClass 0
+
+on property:sys.usb.config=mtp,adb
+ stop adbd
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/functions mtp,adb
+ write /sys/class/android_usb/android0/enable 1
+ start adbd
+
+on property:sys.usb.config=adb
+ stop adbd
+ write /sys/class/android_usb/android0/enable 0
+ write /sys/class/android_usb/android0/functions adb
+ write /sys/class/android_usb/android0/enable ${service.adb.root}
+ start adbd