const golang.org/x/sys/unix.PTP_ENABLE_PPS2

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux_amd64.go#L247: 	PTP_ENABLE_PPS2                  = 0x40043d0d

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)