On Wed, Dec 19, 2012 at 08:42:06PM -0500, Bruce A. Locke wrote:
> Ad hoc wireless support started disappearing from devices back in
> Honeycomb. I know Toshiba dropped it during its 3.1 tablet updates. Various
> ROMs seen to add it back for their users.
> 
> Pure speculation: It might have been dropped intentionally as WiFi Direct
> started to ship as a feature:
> 
> http://en.m.wikipedia.org/wiki/Wi-Fi_Direct

Ad-hoc stopped being defined in the specs in 11b as I recall.  11g
makes no specific definition of ad-hoc specs - some manufacturers
allowed it at 11g speeds, some at 11b speeds only.

11n drops adhoc entirely, as I recall.  It also removes wep (at 11n
speeds), and imposes other limitations.

It's not surprising that a modern device just doesn't support ad-hoc -
it was a half-assed spec from the beginning and they're desperately
trying to kill it in favor of, as Bruce says, wifi-direct.

-m

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