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	Add README.md. - rfcommd - RFCOMM daemon to run filters on clients.
	git clone git://bitreich.org/rfcommd/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinw…
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	commit db7e150c57ed24474b8d241b143638c17ac6f38d
	parent 6346d6d543ca1bdb9568f0572504c41faa34dfa4
	Author: Christoph Lohmann <[email protected]>
	Date: Fri, 25 Mar 2022 18:56:53 +0100

	Add README.md.

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	A README.md \| 53 ++++++++++++++++++++++++++++++

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	diff --git a/README.md b/README.md
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	+# RFCOMMd, a rfcomm daemon.
	+
	+## RFCOMM
	+
	+RFCOMM is a sub standard of bluetooth, allowing serial communication via
	+some bluetooth channel.
	+
	+## What is this?
	+
	+The rfcomm daemon will offer some rfcomm service for any device and based
	+on the id of the device, users can run different scripts, daemons or
	+filters for serial link output.
	+
	+## Installation
	+
	+ $ make
	+ $ make PREFIX=/usr install
	+ # Copy over init scripts from etc/* for your needs.
	+ # Copy over sample filters from filters/* for your needs.
	+
	+## Filters
	+
	+A filter is a simple script, where the first argument is the rfcomm
	+device, like /dev/rfcomm0. The script can then do whatever it likes on
	+this pseudo tty. See the example filters for how to properly configure
	+the device to your needs using stty.
	+
	+Using this logic, you can use whatever daemon allowing serial
	+communication as a filter script.
	+
	+## Types of Connection
	+
	+Depending on how crappy someone implemented bluetooth, I observed
	+following device behaviours:
	+
	+1.) The device will connect, output content and then disconnect.
	+
	+2.) The device connects and stays connected.
	+
	+Since rfcommd does no child process management, which would be too much
	+for it, you need to consider this for anything restarting rfcommd. Maybe
	+in the future a better logic can be implemented.
	+
	+## Bugs / Patches
	+
	+Send bugs / patches to:
	+
	+ Christoph Lohmann <[email protected]>
	+
	+## Have fun!
	+
	+Have fun using this!
	+