Re: Does anyone still care about BSD ptys?

["Joerg Pommnitz" <pommnitz@yahoo.com>]

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


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Regards
       Joerg



	
		
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