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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L2692: 	PTP_PEROUT_VALID_FLAGS                      = 0x7

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