From e83b7cf8f1bad5b334b6352d3b850d8555530a9a Mon Sep 17 00:00:00 2001
From: Doug Zongker <dougz@android.com>
Date: Mon, 9 Jan 2012 15:16:13 -0800
Subject: support "sideload over ADB" mode

Rather than depending on the existence of some place to store a file
that is accessible to users on an an unbootable device (eg, a physical
sdcard, external USB drive, etc.), add support for sideloading
packages sent to the device with adb.

This change adds a "minimal adbd" which supports nothing but receiving
a package over adb (with the "adb sideload" command) and storing it to
a fixed filename in the /tmp ramdisk, from where it can be verified
and sideloaded in the usual way.  This should be leave available even
on locked user-build devices.

The user can select "apply package from ADB" from the recovery menu,
which starts minimal-adb mode (shutting down any real adbd that may be
running).  Once minimal-adb has received a package it exits
(restarting real adbd if appropriate) and then verification and
installation of the received package proceeds.

always initialize usb product, vendor, etc. for adb in recovery

Set these values even on non-debuggable builds, so that the mini-adb
now in recovery can work.
---
 etc/init.rc | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'etc')

diff --git a/etc/init.rc b/etc/init.rc
index 554d4e634..a301779aa 100644
--- a/etc/init.rc
+++ b/etc/init.rc
@@ -15,6 +15,15 @@ on init
     mkdir /cache
     mount /tmp /tmp tmpfs
 
+    write /sys/class/android_usb/android0/enable 0
+    write /sys/class/android_usb/android0/idVendor 18D1
+    write /sys/class/android_usb/android0/idProduct D001
+    write /sys/class/android_usb/android0/functions 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 boot
 
     ifup lo
@@ -33,14 +42,7 @@ service adbd /sbin/adbd recovery
 
 # Always start adbd on userdebug and eng builds
 on property:ro.debuggable=1
-    write /sys/class/android_usb/android0/enable 0
-    write /sys/class/android_usb/android0/idVendor 18D1
-    write /sys/class/android_usb/android0/idProduct D001
-    write /sys/class/android_usb/android0/functions adb
     write /sys/class/android_usb/android0/enable 1
-    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
     start adbd
 
 # Restart adbd so it can run as root
-- 
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