(Phil) It works! So, I'll commit it. Here's the skinny:

There is only one file 'disp'.  To send bytes (like chars to be displayed)
you send a series of unsigned base-10 values separated by spaces.
For example:

echo "hi there" | perl -e \
 '$_=<STDIN>; while (/(.)/gc) { print ord($1)," "; }' \
 > /proc/sys/dev/sensors/matorb*/disp

This is equivelent to doing:

echo "104 105 32 116 104 101 114 101" > /proc/sys/dev/sensors/matorb*/disp

I was going to create more files for doing things like clearing the screen,
but it is easier and probably better to do this in user-space.  For example,
to clean the screen, you can do:

echo "254 88" > /proc/sys/dev/sensors/matorb*/disp

(As documented in the manual from Matrix-Orbital)

If the folks at Matrix-Orbital added device ID on a read (we talked about
this), then I will add an ID file to indicate that info.

TODO: finish detection.  Right now it looks for a device at a particular
address and assumes it is a display.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@482 7894878c-1315-0410-8ee3-d5d059ff63e0

kernel/chips/matorb.c

@@ -303,6 +303,8 @@ void matorb_update_client(struct i2c_client *client)
 void matorb_disp(struct i2c_client *client, int operation, int ctl_name,
                int *nrels_mag, long *results)
 {
+int i;
+
   if (operation == SENSORS_PROC_REAL_INFO)
     *nrels_mag = 0;
   else if (operation == SENSORS_PROC_REAL_READ) {
@@ -310,8 +312,8 @@ void matorb_disp(struct i2c_client *client, int operation, int ctl_name,
     results[0] = 0;
     *nrels_mag = 3;
   } else if (operation == SENSORS_PROC_REAL_WRITE) {
-    if (*nrels_mag >= 1) {
-      matorb_write_value(client,0,results[0]);
+    for (i=1; i<=*nrels_mag;i++) {
+      matorb_write_value(client,0,results[i-1]);
     }
   }
 }