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authorVladimir Oltean <olteanv@gmail.com>2020-07-20 20:55:59 +0300
committerDavid S. Miller <davem@davemloft.net>2020-07-20 18:04:59 -0700
commit7570ebe0410a1df1c9a44071c18685842d84a7e1 (patch)
tree2949bd6caee872feecc40e4d3c7f8112777ea283 /scripts/coccinelle/iterators
parent4a09a981002bafdac1decf4116c77bf8f5496326 (diff)
testptp: add new options for perout phase and pulse width
Extend the example program for PTP ancillary functionality with the ability to configure not only the periodic output's period (frequency), but also the phase and duty cycle (pulse width) which were newly introduced. The ioctl level also needs to be updated to the new PTP_PEROUT_REQUEST2, since the original PTP_PEROUT_REQUEST doesn't support this functionality. For an in-tree testing program, not having explicit backwards compatibility is fine, as it should always be tested with the current kernel headers and sources. Tested with an oscilloscope on the felix switch PHC: echo '2 0' > /sys/class/ptp/ptp1/pins/switch_1588_dat0 ./testptp -d /dev/ptp1 -p 1000000000 -w 100000000 -H 1000 -i 0 Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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