1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/graphlcd-base/docs/DRIVER.serdisp	Wed Feb 06 17:32:55 2008 +0000
     1.3 @@ -0,0 +1,61 @@
     1.4 +---------------------------------------------------------------------
     1.5 +GraphLCD driver library
     1.6 +
     1.7 +The serdisp driver
     1.8 +---------------------------------------------------------------------
     1.9 +
    1.10 +Description
    1.11 +-----------
    1.12 +The serdisp driver supports LC displays that are supported by
    1.13 +serdisplib (http://serdisplib.sourceforge.net).
    1.14 +
    1.15 +
    1.16 +Configuration Parameters
    1.17 +------------------------
    1.18 +The serdisp driver supports the following parameters in config file:
    1.19 +
    1.20 +Controller
    1.21 + Select the controller your LCD uses named like in serdisplib.
    1.22 + Possible values: See README in serdisplib package
    1.23 +
    1.24 +Device
    1.25 + Instead of using the direct output via port address (see Port), you
    1.26 + can use the parport device (/dev/parportX). The advantage over the
    1.27 + direct output via port address is that this works for non-root users
    1.28 + also. But it's a little bit slower. The modules ppdev.o, parport.o
    1.29 + and parport_pc.o must be loaded or compiled into the kernel.
    1.30 +
    1.31 +Port
    1.32 + Sets the port address of the parallel port. If this parameter is not
    1.33 + given, 0x378 is used. To use this direct output, the program that
    1.34 + uses the driver library has to be started with user 'root'.
    1.35 +
    1.36 +Width
    1.37 + Sets the horizontal size of the display. If this parameter is not
    1.38 + given, a default value according to the selected controller is used.
    1.39 +
    1.40 +Height
    1.41 + Sets the vertical size of the display. If this parameter is not
    1.42 + given, a default value according to the selected controller is used.
    1.43 +
    1.44 +UpsideDown
    1.45 + Rotates the display output by 180 degrees. This might be useful, if
    1.46 + the LCD is mounted upside-down.
    1.47 + Possible values: 'yes', 'no'
    1.48 + Default value: 'no'
    1.49 +
    1.50 +Invert
    1.51 + Inverts the display.
    1.52 + Possible values: 'yes', 'no'
    1.53 + Default value: 'no'
    1.54 +
    1.55 +Contrast
    1.56 + Sets the contrast of your display.
    1.57 + Possible values: 0 <= x <= 10
    1.58 + Default value: 5
    1.59 +
    1.60 +Backlight
    1.61 + Switches the backlight of your display on and off.
    1.62 + Possible values: 'yes', 'no'
    1.63 + Default value: 'yes'
    1.64 +