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Brightness (Linux): print more useful display name instead of intel_backlight

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This commit is contained in:
李通洲
2023-05-30 20:57:05 +08:00
parent cb8a9c0796
commit 393857b067
1 changed files with 16 additions and 7 deletions
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src/detection/brightness/brightness_linux.c
+16 -7
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@@ -2,6 +2,7 @@
#include "common/io/io.h"
#include <dirent.h>
#include <ctype.h>
const char* ffDetectBrightness(FF_MAYBE_UNUSED FFlist* result)
{
@@ -12,13 +13,13 @@ const char* ffDetectBrightness(FF_MAYBE_UNUSED FFlist* result)
if(dirp == NULL)
return "Failed to open `/sys/class/backlight/`";
FFstrbuf backlightDir;
FF_STRBUF_AUTO_DESTROY backlightDir;
ffStrbufInitA(&backlightDir, 64);
ffStrbufAppendS(&backlightDir, backlightDirPath);
uint32_t backlightDirLength = backlightDir.length;
FFstrbuf buffer;
FF_STRBUF_AUTO_DESTROY buffer;
ffStrbufInit(&buffer);
struct dirent* entry;
@@ -38,18 +39,26 @@ const char* ffDetectBrightness(FF_MAYBE_UNUSED FFlist* result)
if(ffReadFileBuffer(backlightDir.chars, &buffer))
{
FFBrightnessResult* display = (FFBrightnessResult*) ffListAdd(result);
ffStrbufInitS(&display->name, entry->d_name);
ffStrbufSubstrBeforeLastC(&backlightDir, '/');
ffStrbufAppendS(&backlightDir, "/device");
ffStrbufInitA(&display->name, PATH_MAX + 1);
if(realpath(backlightDir.chars, display->name.chars))
{
ffStrbufRecalculateLength(&display->name);
ffStrbufSubstrAfterLastC(&display->name, '/');
if(ffStrbufStartsWithS(&display->name, "card") && isdigit(display->name.chars[4]))
ffStrbufSubstrAfterFirstC(&display->name, '-');
}
else
ffStrbufInitS(&display->name, entry->d_name);
double maxBrightness = ffStrbufToDouble(&buffer);
display->value = (float) (actualBrightness * 100 / maxBrightness);
}
break;
}
ffStrbufSubstrBefore(&backlightDir, backlightDirLength);
}
closedir(dirp);
ffStrbufDestroy(&backlightDir);
ffStrbufDestroy(&buffer);
return NULL;
}