From b18084fbfcac37d220fa3788eaaa51d9f19d4ba1 Mon Sep 17 00:00:00 2001
From: William Castro <castrwilliam@gmail.com>
Date: Mon, 12 May 2014 13:51:05 -0700
Subject: [PATCH] add documentation and infrastructure for ADB and RNDIS over
 USB

---
 README.md            | 13 +++++++++++++
 system/adbd.service  | 11 +++++++++++
 tmpfiles.d/adbd.conf |  3 +++
 3 files changed, 27 insertions(+)
 create mode 100644 system/adbd.service
 create mode 100644 tmpfiles.d/adbd.conf

diff --git a/README.md b/README.md
index 00cdf4e..ee5fbc9 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,16 @@ exec awesome
 Since the MSMFB_SW_REFRESHER does not seem to be working i wrote this instead.
 Just compile and put in you ~/ or whereever so xinit can run it.
 
+## Enabling ADB and RNDIS (reverse USB tethering)
+1: Create this link for ADB to be able to find the shell, etc.
+  ln -s / /system
+  
+2: Add the included systemd-tmpfiles config files. They go in /etc/tmpfiles.d, and require a reboot to apply them.
+
+ADB shell works, but you will need to set the size ($COLUMNS and $LINES) and terminal type ($TERM) manually. 
+
+To use RNDIS, plug the Nexus into a computer and bridge the virtual ethernet adapter with your local network. Then, bring up the link and get an address as usual. The interface name should be 'usb0'.
+
 # Kernel stuff
 
 You can use the kernel from here https://github.com/crondog/kernel_msm
@@ -152,6 +162,9 @@ CONFIG_SECURITY_SELINUX_BOOTPARAM=y
 
 # Whats Working
 Wifi
+ADB
+USB Reverse Tethering/RNDIS (guest)
+USB OTG (host)
 fb0
 Audio -- Need to setup Pulse Audio as systemwide. Not sure why it does not work as a normal user
 You will also need the alsaucm files from libasound2-data_1.0.27.2-1ubuntu6_all.deb
diff --git a/system/adbd.service b/system/adbd.service
new file mode 100644
index 0000000..20b20a4
--- /dev/null
+++ b/system/adbd.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=ADB Daemon
+After=systemd-tmpfiles-setup.service
+
+[Service]
+Type=simple
+ExecStart=/bin/bash -c '/sbin/adbd 2> /var/log/adbd.err 1> /var/log/adbd.out'
+
+[Install]
+WantedBy=basic.target
+Before=network.service
diff --git a/tmpfiles.d/adbd.conf b/tmpfiles.d/adbd.conf
new file mode 100644
index 0000000..87b4b0a
--- /dev/null
+++ b/tmpfiles.d/adbd.conf
@@ -0,0 +1,3 @@
+w /sys/class/android_usb/android0/functions	- - - - 	adb,rndis
+w /sys/class/android_usb/android0/enable	- - - - 	1
+