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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L2682: 	PTP_EXTTS_EVENT_VALID                       = 0x1

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