Messages in this thread |  | | | Date | Mon, 9 Feb 2004 17:57:11 +0100 (CET) | | From | Joerg Pommnitz <> | | Subject | Re: Does anyone still care about BSD ptys? |
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HPA asked: > Does anyone still care about old-style BSD ptys, i.e. /dev/pty*?
I do! I have an application that demultiplexes multiple serial streams from a single one (to be exact this implements the multiplexing scheme specified in 3GPP TS27.010 (http://www.3gpp.org/ftp/Specs/latest/Rel-5/27_series/27010-500.zip).
The multiplexer uses old-style ptys to export the multiple streams to the applications (e.g. there are: crw-rw-rw- 1 root root 3, 236 May 21 2002 ttypMuxA0 crw-rw-rw- 1 root root 3, 237 May 21 2002 ttypMuxA1 crw-rw-rw- 1 root root 3, 238 May 21 2002 ttypMuxA2 crw-rw-rw- 1 root root 3, 239 May 21 2002 ttypMuxA3 crw-rw-rw- 1 root root 2, 236 May 21 2002 ptypMuxA0 crw-rw-rw- 1 root root 2, 237 May 21 2002 ptypMuxA1 crw-rw-rw- 1 root root 2, 238 May 21 2002 ptypMuxA2 crw-rw-rw- 1 root root 2, 239 May 21 2002 ptypMuxA3).
It would be difficult to implement the same thing using SYSV ptys.
Regards Joerg
===== -- Regards Joerg
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