From ec009e8cd45fafab8ba9458791f28d62d711d137 Mon Sep 17 00:00:00 2001
From: Matt Mower <mowerm@gmail.com>
Date: Fri, 30 Jan 2015 13:00:49 -0600
Subject: 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
---
 etc/init.recovery.usb.rc | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 etc/init.recovery.usb.rc

(limited to 'etc/init.recovery.usb.rc')

diff --git a/etc/init.recovery.usb.rc b/etc/init.recovery.usb.rc
new file mode 100644
index 000000000..b4a852a13
--- /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
-- 
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