Re: [Lcd4linux-devel] lcd4linux patch

[Nikos M. <nm...@gn...>]

On 10/5/06, Michael Reinelt <re...@eu...> wrote:
> Hi Nikos,

> > in lcd4linux.conf and screens were switching every ten seconds.
> I think we should make these 10 seconds configurable in any way....

Indeed. I was thinking this as a preliminary patch. I am not familiar with
the code base and probably some things might be done better too (like
the clear command below).

> > ps. moreover this patch includes some changes in the crystalfontz
> > driver for the 632 model to work nicely (without displaying the cursor
> > all the time etc).

The patch (hand edited so may not apply):

--- lcd4linux-0.10.0/drv_Crystalfontz.c 2005-05-08 07:32:44.000000000 +0300
+++ lcd4linux-0.10.0-new/drv_Crystalfontz.c     2006-10-02
11:12:48.000000000 +0300
@@ -744,7 +743,10 @@
 {
     switch (Protocol) {
     case 1:
-       drv_generic_serial_write("\014", 1);
+        /* it was 014 but on 632 is 012.
+         */
+       drv_generic_serial_write("\012", 1);
+        drv_generic_serial_write("\004", 1); /* also disable the cursor */
        break;
     case 2:
     case 3:
@@ -757,10 +759,11 @@
 /* init sequences for 626, 632, 634, 636  */
 static void drv_CF_start_1(void)
 {
-    drv_generic_serial_write("\014", 1);       /* Form Feed (Clear Display) */
-    drv_generic_serial_write("\004", 1);       /* hide cursor */
+    drv_generic_serial_write("\012", 1);       /* Form Feed (Clear Display) */
     drv_generic_serial_write("\024", 1);       /* scroll off */
     drv_generic_serial_write("\030", 1);       /* wrap off */
+    drv_generic_serial_write("\004", 1);        /* cursor off...
doesn't seem to work here */
+
 }


These changes were because the \004 command on init didn't disable
the cursor for me thus I included it on every screen cleanup. Also the 014
command although seemed to work, it is something else on my
CZ632 (014=backlight control). Thus I changed it with 012 which is the
form feed.



regards,
Nikos