===================================
License: GPLv2
-Author & Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
+Author & Maintainer: Miguel Ojeda Sandonis
Date: 2006-10-27
1. DRIVER INFORMATION
---------------------
-This driver support one cfag12864b display at time.
+This driver supports a cfag12864b LCD.
---------------------
Ground (18)---[GND] [+5v]---(19) LED +
Ground (19)---[GND]
Ground (20)---[GND] E A Values:
-Ground (21)---[GND] [GND]---[P1]---(18) Vee · R = Resistor = 22 ohm
-Ground (22)---[GND] | · P1 = Preset = 10 Kohm
-Ground (23)---[GND] ---- S ------( 3) V0 · P2 = Preset = 1 Kohm
+Ground (21)---[GND] [GND]---[P1]---(18) Vee - R = Resistor = 22 ohm
+Ground (22)---[GND] | - P1 = Preset = 10 Kohm
+Ground (23)---[GND] ---- S ------( 3) V0 - P2 = Preset = 1 Kohm
Ground (24)---[GND] | |
Ground (25)---[GND] [GND]---[P2]---[R]---(20) LED -
Also, you can mmap the framebuffer: open & mmap, munmap & close...
which is the best option for most uses.
-Check Documentation/auxdisplay/cfag12864b-example.c
+Check samples/auxdisplay/cfag12864b-example.c
for a real working userspace complete program with usage examples.