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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L1424: 	HDIO_GET_UNMASKINTR                         = 0x302

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