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Re: Emacs Webapp/Plugin

From: Jason Rumney
Subject: Re: Emacs Webapp/Plugin
Date: Sat, 04 Aug 2012 10:43:47 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux)

Richard Stallman <address@hidden> writes:

> I don't know how the main processor communicates with the 3G modem.
> If it is by memory sharing, the firmware in the modem can take control
> of the entire system.

Normally it is via a comm port (or similar; sometimes USB or SPI are
used in place of a UART to get higher transfer speeds).

The other main source of binary blobs in mobile plaforms is graphics
drivers and video accelerators, which are interfacing with the main CPU
(in the same package, but a separate processing core) via memory

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