SHM and Touchpad

[Philip Semanchuk]

On Jun 17, 2009, at 3:56 PM, Sparky wrote:

> Hello! I am writing an application that requires access to the state
> of a synaptics touch pad on a laptop running Ubuntu Linux (for the
> number of fingers, pressure, x location, y location, etc). A different
> program using C++ accesses the information through SHM and I was
> hoping to do the same with Python. I looked in PyPi and I noticed that
> there was a module for SHM but I can not figure out where to download
> it from (http://pypi.python.org/pypi/shm). Does anyone have any
> suggestions?


Hi Sam,
I'm not familiar with that shm, however there was (and still is) a old  
Python IPC module called shm. It uses Sys V semaphores, not POSIX  
semaphores like the shm in pypi.

The old shm module has been replaced by two newer ones. For Sys V IPC:
http://semanchuk.com/philip/sysv_ipc/

For POSIX IPC:
http://semanchuk.com/philip/posix_ipc/

The old shm module is still around on semanchuk.com but I'm not  
updating it anymore (the author is AWOL and I'm just the maintainer)  
and I don't recommend using it.

HTH
Philip