cpufreq: gps && rxerr: port=1 ch=0x24, rxs=0x00000001

Nils Faerber nils.faerber at kernelconcepts.de
Tue Jun 16 11:32:42 CEST 2009

Timo Juhani Lindfors schrieb:
> Nils Faerber <nils.faerber at kernelconcepts.de> writes:
>> Is this "sporadic", i.e. does this error occur sometimes and after the
>> error it works again?
> Yes.
>> It could also be that if there is traffic on the serial line in the very
>> same moment when the frequency change occurs the UART looses its clock
> I thought I set the clock permanently to 100 MHz when I ran
> sudo sh -c "echo powersave > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
> What kind of frequency changes are you talking about?

Oh, OK, I had the impression that you were using something like the
ondemand cpufreq governor.
If the CPU clock sticks to the powersave governor's 100MHz then my
theory is void.

  nils faerber

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