Oron Peled 54b9983407 xpp: FXS: better power-down to lower noise ...

* Now every linefeed control command which is not RING'ing
  powers-down the SLIC. This reduce audible noise when
  several channels are ringing.

* Simplify code by removing redundant calls to do_chan_power()
  before linefeed_control()

* Manage vbat_h state so we skip do_chan_power() calls when
  there isn't a state change

* Export vbat_h state to /proc/.../fxs_info

Signed-off-by: Oron Peled <oron.peled@xorcom.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>

Origin: http://svnview.digium.com/svn/dahdi?view=rev&rev=10478

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/branches/2.6@10490 a0bf4364-ded3-4de4-8d8a-66a801d63aff

2012-03-15 17:36:48 +00:00

..

dahdi

xpp: FXS: better power-down to lower noise

2012-03-15 17:36:48 +00:00