FDI LP3180, User Manual, Page: 35 / 40

FDI
NXP LPC3180 Demo
User’s Manual
FDI
Rev 2 Page 35 9/7/2007
4. FBIO_SCREENON
a. Purpose: Turns on the screen if it is off. If the screen is already on, this
command has no effect.
b. Arguments: None
c. Returns: 1 on failure, 0 on success
d. Example:
if (ioctl(fbfd, FBIO_SCREENON)) {
printf("Error turning screen on.\n");
exit(1);
}
5. FBIO_TOGGLESLEEP
a. Purpose: This command puts the LCD panel to sleep if it is awake or
wakes it if the LCD panel is asleep.
b. Arguments: None
c. Returns: 1 on failure, 0 on success
d. Example:
if (ioctl(fbfd, FBIO_TOGGLESLEEP)) {
printf("Error toggling screen sleep.\n");
exit(1);
}
6. FBIO_SLEEPON
a. Purpose: If the LCD panel is awake, this command explicitly puts it to
sleep. If the LCD panel is asleep, this command has no effect.
b. Arguments: None
c. Returns: 1 on failure, 0 on success
d. Example:
if (ioctl(fbfd, FBIO_SLEEPON)) {
printf("Error turning sleep on.\n");
exit(1);
}
7. FBIO_SLEEPOFF
a. Purpose: If the LCD panel is asleep, this command explicitly wakes it up.
If the LCD panel is awake, this command has no effect.
b. Arguments: None
c. Returns: 1 on failure, 0 on success
d. Example:
if (ioctl(fbfd, FBIO_SLEEPOFF)) {
printf("Error turning sleep off.\n");
exit(1);
}
8. FBIO_TOGGLEINVERT