From: David Brownell <dbrownell@users.sourceforge.net>
Date: Thu, 18 Jan 2007 05:45:48 +0000 (-0500)
Subject: Input: ads7846 - be more compatible with the hwmon framework
X-Git-Tag: v2.6.21-rc1~274^2~228^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c8dc071517ec2843869024dc82be2e246f41064;p=pandora-kernel.git

Input: ads7846 - be more compatible with the hwmon framework

 - Hook up to hwmon
     * show sensor attributes only if hwmon is present
     * ... and the board's reference voltage is known
     * otherwise be just a touchscreen
 - Report voltages per hwmon convention
     * measure in millivolts
     * voltages are named in[0-8]_input (ugh)
     * for 7846 chips, properly range-adjust vBATT/in1_input

Battery measurements help during recharge monitoring.  On OSK/Mistral,
the measured voltage agreed with a multimeter to several decimal places.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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