document minor bits; noted as missing in netbsd pr#2746; augustss@cs.chalmers.se

1 files changed, 12 insertions, 4 deletions

diff --git a/share/man/man4/man4.i386/lpt.4 b/share/man/man4/man4.i386/lpt.4
index 5c2e530d430..acb757efb37 100644
--- a/share/man/man4/man4.i386/lpt.4
+++ b/share/man/man4/man4.i386/lpt.4
@@ -27,7 +27,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$Id: lpt.4,v 1.2 1996/08/08 17:11:25 deraadt Exp $
+.\"	$Id: lpt.4,v 1.3 1996/09/20 07:02:49 deraadt Exp $
 .\"
 .Dd August 6, 1993
 .Dt LPT 4 i386
@@ -41,9 +41,17 @@ Parallel port driver
 .Cd "lpt0 at isa? port" \&"IO_LPT1\&" irq 7
 .Cd "lpt1 at isa? port" \&"IO_LPT2\&"
 .Sh DESCRIPTION
-This driver provides access to parallel ports.  The highest bit in the minor
-number selects whether to do polling or wait for interrupts.  If no IRQ is
-specified in the kernel configuration, only the polling device may be used.
+This driver provides access to parallel ports.
+.Pp
+The highest bit in the minor (bit 7, or add 128) number selects
+whether to do polling or wait for interrupts.  If no IRQ is specified
+in the kernel configuration, only the polling device may be used.
+.Pp
+The next lower bit (bit 6, or add 64) indicates the driver should
+avoid initializing the printer.
+.P.
+The next lower bit (bit 5, or add 32) requests that the driver do
+automatic LF generation when printing CR's.
 .Sh FILES
 .Bl -tag -width Pa -compact
 .It Pa /dev/lpt0