[Linphone-users] [PATCH] answer call on unix SIGUSR1

[David Mansfield]

I have a headset (microsoft lifechat lx-3000) with an "answer" button on 
the cord, which I wanted to have work with linphone.

Because of reasons like:

* answer button press doesn't generate an actual X keyboard event (but 
is visible through /dev/hidrawX)
* linphone is running on local desktop, but I'm working on a fullscreen 
remote desktop and all keyboard events get sent there

I decided to use a simple Unix signal IPC to hook into the linphone gtk 
main loop, as described in:

http://askra.de/software/gtk-signals/a2955.html

The implementation is basically:

* create a "self-pipe" during initialization
* create GIOChannel on "read" end of pipe, and add a watch to main loop
* unix signal handler writes "message" into pipe
* GIOChannel event reads "message" from pipe and calls 
linphone_gtk_answer_clicked(NULL), which already takes care of what to 
do if no call is currently ringing.

Last part is a perl script which reads bytes from /dev/hidrawX and looks 
for a specific byte-sequence and sends the "kill" to the pid of the 
running linphone.  Perl script is currently hard-coded to hell, but I'll 
attach anyway for "documentation purposes".  Note: requires "read" 
access to be granted on /dev/hidrawX device to current user before 
running. Note2: script also pauses playing rhythmbox on answer press.

--
Thanks,
David Mansfield
Cobite, INC.

linphone-3.5.2-answer-SIGUSR1.patch
Description: Text document

answer_linphone.pl
Description: Perl program