Root/arch/um/Kconfig.char

Source at commit 694c7fbe86b8a9c91392e505afcb9fcfc91deccc created 13 years 13 days ago.
By Maarten ter Huurne, MIPS: JZ4740: Add cpufreq support
1menu "UML Character Devices"
2
3config STDERR_CONSOLE
4    bool "stderr console"
5    default y
6    help
7      console driver which dumps all printk messages to stderr.
8
9config SSL
10    bool "Virtual serial line"
11    help
12          The User-Mode Linux environment allows you to create virtual serial
13          lines on the UML that are usually made to show up on the host as
14          ttys or ptys.
15
16          See <http://user-mode-linux.sourceforge.net/old/input.html> for more
17          information and command line examples of how to use this facility.
18
19          Unless you have a specific reason for disabling this, say Y.
20
21config NULL_CHAN
22    bool "null channel support"
23    help
24          This option enables support for attaching UML consoles and serial
25          lines to a device similar to /dev/null. Data written to it disappears
26          and there is never any data to be read.
27
28config PORT_CHAN
29    bool "port channel support"
30    help
31          This option enables support for attaching UML consoles and serial
32          lines to host portals. They may be accessed with 'telnet <host>
33          <port number>'. Any number of consoles and serial lines may be
34          attached to a single portal, although what UML device you get when
35          you telnet to that portal will be unpredictable.
36          It is safe to say 'Y' here.
37
38config PTY_CHAN
39    bool "pty channel support"
40    help
41          This option enables support for attaching UML consoles and serial
42          lines to host pseudo-terminals. Access to both traditional
43          pseudo-terminals (/dev/pty*) and pts pseudo-terminals are controlled
44          with this option. The assignment of UML devices to host devices
45          will be announced in the kernel message log.
46          It is safe to say 'Y' here.
47
48config TTY_CHAN
49    bool "tty channel support"
50    help
51          This option enables support for attaching UML consoles and serial
52          lines to host terminals. Access to both virtual consoles
53          (/dev/tty*) and the slave side of pseudo-terminals (/dev/ttyp* and
54          /dev/pts/*) are controlled by this option.
55          It is safe to say 'Y' here.
56
57config XTERM_CHAN
58    bool "xterm channel support"
59    help
60          This option enables support for attaching UML consoles and serial
61          lines to xterms. Each UML device so assigned will be brought up in
62          its own xterm.
63          It is safe to say 'Y' here.
64
65config NOCONFIG_CHAN
66    bool
67    default !(XTERM_CHAN && TTY_CHAN && PTY_CHAN && PORT_CHAN && NULL_CHAN)
68
69config CON_ZERO_CHAN
70    string "Default main console channel initialization"
71    default "fd:0,fd:1"
72    help
73          This is the string describing the channel to which the main console
74          will be attached by default. This value can be overridden from the
75          command line. The default value is "fd:0,fd:1", which attaches the
76          main console to stdin and stdout.
77          It is safe to leave this unchanged.
78
79config CON_CHAN
80    string "Default console channel initialization"
81    default "xterm"
82    help
83          This is the string describing the channel to which all consoles
84          except the main console will be attached by default. This value can
85          be overridden from the command line. The default value is "xterm",
86          which brings them up in xterms.
87          It is safe to leave this unchanged, although you may wish to change
88          this if you expect the UML that you build to be run in environments
89          which don't have X or xterm available.
90
91config SSL_CHAN
92    string "Default serial line channel initialization"
93    default "pty"
94    help
95          This is the string describing the channel to which the serial lines
96          will be attached by default. This value can be overridden from the
97          command line. The default value is "pty", which attaches them to
98          traditional pseudo-terminals.
99          It is safe to leave this unchanged, although you may wish to change
100          this if you expect the UML that you build to be run in environments
101          which don't have a set of /dev/pty* devices.
102
103config UML_SOUND
104    tristate "Sound support"
105    help
106          This option enables UML sound support. If enabled, it will pull in
107          soundcore and the UML hostaudio relay, which acts as a intermediary
108          between the host's dsp and mixer devices and the UML sound system.
109          It is safe to say 'Y' here.
110
111config SOUND
112    tristate
113    default UML_SOUND
114
115config SOUND_OSS_CORE
116    bool
117    default UML_SOUND
118
119config HOSTAUDIO
120    tristate
121    default UML_SOUND
122
123endmenu
124

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