Updated Wednesday 16 Oktober, 2013

This app used to work on certain roms on certain hardware. But on many others it didn’t and even disabled WiFi altogether.
I pulled it from the App Store but many third party stores still offer this app. I advise against using it if you are not prepared to re-flash your rom if things don’t work out.

Reported to give problems on:

• HP Touchpad running Cyanogen Mod 9 ICS
• HTC Tattoo, Android 2.3.7 CyanogenMod-Arco-Kalim
• HTC Incredible S with 2.3.3 RU (Bootloop)
• Huawei U8500 (msm7225)
• NOOK Tablet – BNTV250 (Android 2.3.4)
• Droid Incredible 2 running TSM GingerBangSense “M” Version 4.5  (results in a  bootloop, requires rom restore)
• HP TouchPad  Running CM7 Alpha 3.5 (no more wifi at all, requires rom restore)
• LG Optimus One (new update hopefully changes this)
• GPAD M7206
• Samsung I9003 Galaxy SL

Report statistics:

Please keep in mind that these numbers are a rough estimate. I will try to filter out duplicate reports (users who send in reports multiple times from the same device)

Features:

• Enable WiFi Ad Hoc mode (and keep infrastructure)
• Restore original settings

Issues:

• No WiFi signal strength visible in taskbar
• There are reports where WiFi completely stopped working (until a factory/hard reset).

Requires:

• Root Access (Superuser)
• BusyBox (don’t forget to actually use the BusyBox wrapper App to download the BusyBox binary!)

Use at your own risk! Please create a rom backup before using this tool.

If you successfully enabled WiFi on your device, please press the “It Works” button to report it to me. I will add your device to the list of supported devices.

Market link: WiFi Ad Hoc enabler

If you don’t have access to Android Market please use the direct download link:
WifiAdHocEnabler.apk   (app removed until I have time to update it properly)

Credits

Szymon for creating the wpa_supplicant file that allows you to see Ad Hoc networks ( http://szym.net/2010/12/adhoc-wifi-in-android/)

RootTools, a library that allows easy root related tasks: http://code.google.com/p/roottools/

The future

It was fun working on this app, but it has proven to be difficult to make something that enables Ad Hoc on a wide spectrum of Android devices. Therefor I will no longer be updating the application and will remove the “report to developer” option. My next project:  running Linux native on my Galaxy Tab P7510.
Starting point will be this thread by poitee -> http://forum.xda-developers.com/showthread.php?t=1189251

Thanks for all the feedback.

Update: March 4, 2012

Version 1.8.3 is out.

Hopefully added the Asus Transformer Prime TF201 with ICS / Android 4 to the list of supported devices.
Commands are now executed prefixed with busybox, hope this helps some of the “grep not found”  errors.