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I have in my possession a G1 and a new Android tablet (the Kmart one, the Gentouch). The Gentouch uses wifi to access the internet; the G1 uses a T-Mobile cellular connection. Ideally, I'd like to somehow cause that G1 to emit a wifi access point, so that whenever the G1 and the Gentouch are in close proximity, the Gentouch can piggyback off the G1's internet connection and reach the internet itself. Assuming I am willing/able to root both devices if necessary, how would I accomplish such a task?

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3 Answers

up vote 7 down vote accepted

There are apps on the market that can do this on most rooted phone. Barnacle is pretty popular for this and people seem to like it. Actually the first review for the app is someone doing exactly what you want to do just with an Ipad. Just search for "barnacle wifi hotspot" on the Market, good luck.

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"Any" is a little strong ;) –  Matthew Read Dec 27 '10 at 19:23
1  
@Matthew Read: That's fair, absolutes are probably not appropriate when it comes to rooting. I'll change it to a more flexible, "most". –  Kyle Dec 27 '10 at 19:41
    
@Kyle An upboat for you good sir –  Matthew Read Dec 27 '10 at 20:39
    
Problem: Android seems to have trouble connecting to Ad-Hoc networks, and the Barnacle supplies.... an ad-hoc network. –  GWLlosa Dec 28 '10 at 3:55
    
All of the wifi enabling apps that circumvent the carriers WAP service use adhoc. –  Matt Dec 28 '10 at 10:32
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For completeness, now I got the tablet to connect to adhoc:

wpa_supplicant.conf edit


ctrl_interface=/data/misc/wifi/wpa_supplicant
ctrl_interface_group=1010
update_config=1
ap_scan=2

#added ap_scan=2 so it scans all networks including ad-hoc
#this causes priorities to be ignored below.  
#it just goes through the networks one by one.  
# this can really slow things down.  
#I recommend putting a simple file like this with the ad-hoc network at the top
#on your sdcard and then just copy to /data/misc/wifi directory when needed. 
#I sure someone could write a script to backup current and swap in adhoc one.


#added my ad-hoc network.  
network={
   ssid="YourSSID"
   key_mgmt=NONE
#wep_key0 only needed if you use wep.  "" if ascii / no "" if hex
   wep_key0="1234567890123"
#mode=1 needed to indicate ad-hoc
   mode=1
   priority=25
}

#normal access point network
network={
   ssid="exampleAP"
   key_mgmt=NONE
   auth_alg=OPEN SHARED
   wep_key0=01234567890123456789012345
   priority=8
}
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Is this an update to your question or the solution that you've discovered? –  Al E. Dec 28 '10 at 14:04
    
It's a solution to make the previous solution work.. not sure what that would fall under. +1 for the details. –  Kyle Dec 28 '10 at 14:08
    
It was too long to fit as a comment, so I put it as an answer. –  GWLlosa Dec 28 '10 at 15:10
    
I think its great you added it. I was actually going to ask what changes you made just for future reference. –  Kyle Dec 28 '10 at 15:29
    
Originally from user "Junk00" at slatedroid.com/index.php?topic=3598.15 –  GWLlosa Dec 28 '10 at 16:32
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I ran into the same problem with my archos tab not being able to see an adhoc wireless connection. I was able to effectively connect my unrooted archos (running 2.2) and my rooted droid (also on 2.2) via the bluetooth tether option of the "wireless tether for root" app. To be clear this allowed me to access the web on my tab through my phones 3g connection. I wasn't able to get it to work when the tab was on 2.1, but I had read about others that had.

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