Re: [Linuxptp-devel] Frequency offset computation

2015-11-11 Thread Bassam Alsanie
I need to make my homework first. After looking into the function adjtimes things made more sense to me. The missing piece in my understand for now that the timex.freq unit is in ppm and its long, so no fractions for the ppb. After I looked into the kernel module igb_ptp.c it has a function to adju

[Linuxptp-devel] Frequency offset computation

2015-11-11 Thread Bassam Alsanie
There is something I need to understand in the ptp4l implementation in order to implement my custom clock driver correctly. Regards clockajd::clockadj_set_freq(... double freq); What does the 'freq' parameter above represent? Does the freq parameter above represent the requested ppb, or the requ