SCCS-vsn: share/man/man4/man4.vax/tb.4 6.3
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
-.\" @(#)tb.4 6.2 (Berkeley) %G%
+.\" @(#)tb.4 6.3 (Berkeley) %G%
This line discipline provides a polled interface to many common
digitizing devices which are connected to a host through a serial line.
When these devices stream data at high speed, the use of the
This line discipline provides a polled interface to many common
digitizing devices which are connected to a host through a serial line.
When these devices stream data at high speed, the use of the
-line discpline is critical in minimizing the number of samples
+line discipline is critical in minimizing the number of samples
that would otherwise be lost due to buffer exhaustion in the
.IR tty (4)
handler.
that would otherwise be lost due to buffer exhaustion in the
.IR tty (4)
handler.
of the number of samples received from the input device
since it was opened. In addition, devices such as the
GTCO append tilt and pressure information to the end of
of the number of samples received from the input device
since it was opened. In addition, devices such as the
GTCO append tilt and pressure information to the end of
-the aforementioned structure. For the Polehmus 3-D digitizer
-the structure read is completely different, refer to the
+the aforementioned structure. For the Polhemus 3-D digitizer
+the structure read is completely different. Refer to the
include file for a complete description.
.PP
While in tablet mode, normal teletype input and output functions take place.
include file for a complete description.
.PP
While in tablet mode, normal teletype input and output functions take place.
requests to get/set the operating mode, and to get/set the tablet type
and operating mode by \fIor\fP-ing the two values together.
.PP
requests to get/set the operating mode, and to get/set the tablet type
and operating mode by \fIor\fP-ing the two values together.
.PP
-The line discpline supports digitizing devices which are
+The line discipline supports digitizing devices which are
compatible with Hitachi, GTCO, or Polhemus protocol formats.
For Hitachi there are several formats with that used in the
newer model HDG-1111B the most common.
compatible with Hitachi, GTCO, or Polhemus protocol formats.
For Hitachi there are several formats with that used in the
newer model HDG-1111B the most common.