qi-hardware/gmenu2x
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Adapted backlight setting to new kernel interface.

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Updated path to use /sys instead of /proc/jz.
Avoid leading zeroes, since sysfs interprets those as octal numbers.
This commit is contained in:
Maarten ter Huurne 2010-07-12 02:03:50 +02:00
parent 28a041ea80
commit 767c131b1d
1 changed files with 11 additions and 22 deletions
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33
src/gmenu2x.cpp
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@ -107,7 +107,8 @@ void GMenu2X::gp2x_init() {
batteryHandle = fopen("/sys/class/power_supply/battery/capacity", "r");
usbHandle = fopen("/sys/class/power_supply/usb/online", "r");
acHandle = fopen("/sys/class/power_supply/ac/online", "r");
backlightHandle = fopen("/proc/jz/lcd_backlight","w+");
backlightHandle =
fopen("/sys/class/backlight/pwm-backlight/brightness", "w+");
#endif
}
@ -738,33 +739,21 @@ void GMenu2X::ledOff() {
void GMenu2X::setBacklight(int val)
{
if ((val >= 0) && (val <=100))
{
if (backlightHandle)
{
stringstream valsstr;
string valstr = "";
if (val < 10)
valsstr << "00";
else if (val < 100)
valsstr << "0" ;
valsstr << val;
valsstr >> valstr;
fprintf(backlightHandle,"%s",valstr.c_str());
rewind(backlightHandle);
}
if (backlightHandle) {
fprintf(backlightHandle, "%d", (val * 255) / 100);
fflush(backlightHandle);
rewind(backlightHandle);
}
}
int GMenu2X::getBackLight()
{
int val = 100;
if (backlightHandle)
{
char valcstring[4];
fscanf(backlightHandle, "%s", &valcstring[0]);
int val = 255;
if (backlightHandle) {
fscanf(backlightHandle, "%d", &val);
rewind(backlightHandle);
val = atoi(valcstring);
val = (val * 100) / 255;
if (val < 0) val = 0; else if (val > 100) val = 100;
}
return val;
}