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diff --git a/share/man/man4/tb.4 b/share/man/man4/tb.4 deleted file mode 100644 index e3e9afc03ce..00000000000 --- a/share/man/man4/tb.4 +++ /dev/null @@ -1,117 +0,0 @@ -.\" $OpenBSD: tb.4,v 1.9 2004/03/21 19:47:59 miod Exp $ -.\" $NetBSD: tb.4,v 1.3.6.1 1996/05/31 00:37:45 cgd Exp $ -.\" -.\" Copyright (c) 1986, 1991 Regents of the University of California. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)tb.4 6.4 (Berkeley) 3/27/91 -.\" -.Dd March 27, 1991 -.Dt TB 4 -.Os -.Sh NAME -.Nm tb -.Nd line discipline for digitizing devices -.Sh SYNOPSIS -.Cd "pseudo-device tb" Op Ar count -.Sh DESCRIPTION -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 discipline is critical in minimizing the number of samples -that would otherwise be lost due to buffer exhaustion in the -.Xr tty 4 -handler. -.Pp -The line discipline is enabled by a sequence: -.Bd -literal -offset indent -#include <sys/tablet.h> -int ldisc = TABLDISC, fildes; ... -ioctl(fildes, TIOCSETD, &ldisc); -.Ed -.Pp -A typical application program then polls the digitizing device by -reading a binary data structure which contains: the current X and -Y positions (in the device coordinate space), -up-down status of the buttons or pen stylus, -proximity information (when available), and a count -of the number of samples received from the input device -since it was opened. -In addition, devices such as the -.Tn GTCO -append tilt and pressure information to the end of -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. -Thus, if an 8 bit output data path is desired, it is necessary -to prepare the output line by putting it into -.Tn RAW -mode using -.Xr ioctl 2 . -This must be done -.Em before -changing the discipline with -.Dv TIOCSETD , -as most -.Xr ioctl 2 -calls are disabled while in tablet line-discipline mode. -.Pp -The line discipline supports -.Xr ioctl 2 -requests to get/set the operating mode, and to get/set the tablet type -and operating mode by -.Em or Ns -ing -the two values together. -.Pp -Calling -.Xr read 2 -on the device always succeeds, returning the last sample, -although the -.Xr select 2 -and -.Xr poll 2 -system calls will correctly report the read state for new samples. -.Pp -The line discipline supports digitizing devices which are -compatible with Hitachi, -.Tn GTCO , -or Polhemus protocol formats. -For Hitachi there are several formats with that used in the -newer model -.Tn HDG-1111B -the most common. -.Sh DIAGNOSTICS -None. -.Sh SEE ALSO -.Xr tty 4 -.Sh HISTORY -The -.Nm -interface appeared in -.Bx 4.3 . |