From: Renat Zaripov <r.r.zaripov(a)gmail.com&gt; This patch add support for SIM900 GSM module http://wm.sim.com/Sim/FrontShow_en/wireless/detail.aspx?cid=6&nid=770 Signed-off-by: Sergey Lapin <slapin(a)ossfans.org&gt; ---  Makefile.am      |    3 +  plugins/sim900.c |  254 ++++++++++++++++++++++++++++++++++++++++++++++++++++++  plugins/udev.c   |   15 +++  3 files changed, 272 insertions(+), 0 deletions(-)  create mode 100644 plugins/sim900.c