qi-hardware/gmenu2x
1
0
Fork 0
mirror of git://projects.qi-hardware.com/gmenu2x.git synced 2024-11-22 18:21:34 +02:00
Code

Adapted backlight setting to new kernel interface.

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/gmenu2x.cpp
View File

@ -107,7 +107,8 @@ void GMenu2X::gp2x_init() {
batteryHandle = fopen("/sys/class/power_supply/battery/capacity", "r"); batteryHandle = fopen("/sys/class/power_supply/battery/capacity", "r");
usbHandle = fopen("/sys/class/power_supply/usb/online", "r"); usbHandle = fopen("/sys/class/power_supply/usb/online", "r");
acHandle = fopen("/sys/class/power_supply/ac/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 #endif
} }
@ -738,33 +739,21 @@ void GMenu2X::ledOff() {
void GMenu2X::setBacklight(int val) void GMenu2X::setBacklight(int val)
{ {
if ((val >= 0) && (val <=100)) if (backlightHandle) {
{ fprintf(backlightHandle, "%d", (val * 255) / 100);
if (backlightHandle) fflush(backlightHandle);
{ rewind(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);
}
} }
} }
int GMenu2X::getBackLight() int GMenu2X::getBackLight()
{ {
int val = 100; int val = 255;
if (backlightHandle) if (backlightHandle) {
{ fscanf(backlightHandle, "%d", &val);
char valcstring[4];
fscanf(backlightHandle, "%s", &valcstring[0]);
rewind(backlightHandle); rewind(backlightHandle);
val = atoi(valcstring); val = (val * 100) / 255;
if (val < 0) val = 0; else if (val > 100) val = 100;
} }
return val; return val;
} }