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yaml
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r: 123321
b: refs/heads/master
c: 655ab99
h: refs/heads/master
i:
  123319: 0a867fd
v: v3
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Sam Ravnborg authored and David S. Miller committed Dec 4, 2008
1 parent 385d658 commit 3a34ef3
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: b498e42498ba707bf18fd91ab0485f22b5c22a26
refs/heads/master: 655ab9940e6a6c50ef21d466b0f8af506026c22a
34 changes: 0 additions & 34 deletions trunk/arch/sparc/Kconfig
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Expand Up @@ -260,40 +260,6 @@ source "drivers/Kconfig"

source "drivers/sbus/char/Kconfig"

# This one must be before the filesystem configs. -DaveM

menu "Unix98 PTY support"

config UNIX98_PTYS
bool "Unix98 PTY support"
---help---
A pseudo terminal (PTY) is a software device consisting of two
halves: a master and a slave. The slave device behaves identical to
a physical terminal; the master device is used by a process to
read data from and write data to the slave, thereby emulating a
terminal. Typical programs for the master side are telnet servers
and xterms.

Linux has traditionally used the BSD-like names /dev/ptyxx for
masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
has a number of problems. The GNU C library glibc 2.1 and later,
however, supports the Unix98 naming standard: in order to acquire a
pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
terminal is then made available to the process and the pseudo
terminal slave can be accessed as /dev/pts/<number>. What was
traditionally /dev/ttyp2 will then be /dev/pts/2, for example.

The entries in /dev/pts/ are created on the fly by a virtual
file system; therefore, if you say Y here you should say Y to
"/dev/pts file system for Unix98 PTYs" as well.

If you want to say Y here, you need to have the C library glibc 2.1
or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
Read the instructions in <file:Documentation/Changes> pertaining to
pseudo terminals. It's safe to say N.

endmenu

source "fs/Kconfig"

source "arch/sparc/Kconfig.debug"
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