const golang.org/x/sys/unix.PTP_EXTTS_V1_VALID_FLAGS

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L2683: 	PTP_EXTTS_V1_VALID_FLAGS                    = 0x7

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