Read CPU frequency from sysfs by default

Use the more portable sysfs node /sys/devices/system/cpu/cpuX/cpufreq/scaling_cur_freq
to get the CPU frequency.
In case of an error fall back to /proc/cpuinfo .

Also use a fixed width of 4 for the frequency to avoid position jumps
in case the frequency moves in the range 900-1100 MHz.

1 files changed, 1 insertions, 1 deletions

diff --git a/CPUMeter.c b/CPUMeter.c
index badca940..482565ee 100644
--- a/CPUMeter.c
+++ b/CPUMeter.c
@@ -45,7 +45,7 @@ static void CPUMeter_updateValues(Meter* this, char* buffer, int size) {
       if (isnan(cpuFrequency)) {
          xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "N/A");
       } else {
-         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "%.0fMHz", cpuFrequency);
+         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "%4uMHz", (unsigned)cpuFrequency);
       }
       if (this->pl->settings->showCPUUsage) {
          xSnprintf(buffer, size, "%5.1f%% %s", percent, cpuFrequencyBuffer);