Kconfig 5.8 KB

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  1. #
  2. # For a description of the syntax of this configuration file,
  3. # see Documentation/kbuild/config-language.txt.
  4. #
  5. mainmenu "uClinux/h8300 (w/o MMU) Kernel Configuration"
  6. config H8300
  7. bool
  8. default y
  9. config MMU
  10. bool
  11. default n
  12. config SWAP
  13. bool
  14. default n
  15. config FPU
  16. bool
  17. default n
  18. config RWSEM_GENERIC_SPINLOCK
  19. bool
  20. default y
  21. config RWSEM_XCHGADD_ALGORITHM
  22. bool
  23. default n
  24. config GENERIC_FIND_NEXT_BIT
  25. bool
  26. default y
  27. config GENERIC_HWEIGHT
  28. bool
  29. default y
  30. config GENERIC_CALIBRATE_DELAY
  31. bool
  32. default y
  33. config TIME_LOW_RES
  34. bool
  35. default y
  36. config ISA
  37. bool
  38. default y
  39. config PCI
  40. bool
  41. default n
  42. source "init/Kconfig"
  43. source "arch/h8300/Kconfig.cpu"
  44. menu "Executable file formats"
  45. source "fs/Kconfig.binfmt"
  46. endmenu
  47. source "net/Kconfig"
  48. source "drivers/base/Kconfig"
  49. source "drivers/mtd/Kconfig"
  50. source "drivers/block/Kconfig"
  51. source "drivers/ide/Kconfig"
  52. source "arch/h8300/Kconfig.ide"
  53. source "drivers/net/Kconfig"
  54. #
  55. # input - input/joystick depends on it. As does USB.
  56. #
  57. source "drivers/input/Kconfig"
  58. menu "Character devices"
  59. config VT
  60. bool "Virtual terminal"
  61. ---help---
  62. If you say Y here, you will get support for terminal devices with
  63. display and keyboard devices. These are called "virtual" because you
  64. can run several virtual terminals (also called virtual consoles) on
  65. one physical terminal. This is rather useful, for example one
  66. virtual terminal can collect system messages and warnings, another
  67. one can be used for a text-mode user session, and a third could run
  68. an X session, all in parallel. Switching between virtual terminals
  69. is done with certain key combinations, usually Alt-<function key>.
  70. The setterm command ("man setterm") can be used to change the
  71. properties (such as colors or beeping) of a virtual terminal. The
  72. man page console_codes(4) ("man console_codes") contains the special
  73. character sequences that can be used to change those properties
  74. directly. The fonts used on virtual terminals can be changed with
  75. the setfont ("man setfont") command and the key bindings are defined
  76. with the loadkeys ("man loadkeys") command.
  77. You need at least one virtual terminal device in order to make use
  78. of your keyboard and monitor. Therefore, only people configuring an
  79. embedded system would want to say N here in order to save some
  80. memory; the only way to log into such a system is then via a serial
  81. or network connection.
  82. If unsure, say Y, or else you won't be able to do much with your new
  83. shiny Linux system :-)
  84. config VT_CONSOLE
  85. bool "Support for console on virtual terminal"
  86. depends on VT
  87. ---help---
  88. The system console is the device which receives all kernel messages
  89. and warnings and which allows logins in single user mode. If you
  90. answer Y here, a virtual terminal (the device used to interact with
  91. a physical terminal) can be used as system console. This is the most
  92. common mode of operations, so you should say Y here unless you want
  93. the kernel messages be output only to a serial port (in which case
  94. you should say Y to "Console on serial port", below).
  95. If you do say Y here, by default the currently visible virtual
  96. terminal (/dev/tty0) will be used as system console. You can change
  97. that with a kernel command line option such as "console=tty3" which
  98. would use the third virtual terminal as system console. (Try "man
  99. bootparam" or see the documentation of your boot loader (lilo or
  100. loadlin) about how to pass options to the kernel at boot time.)
  101. If unsure, say Y.
  102. config HW_CONSOLE
  103. bool
  104. depends on VT && !S390 && !UM
  105. default y
  106. comment "Unix98 PTY support"
  107. config UNIX98_PTYS
  108. bool "Unix98 PTY support"
  109. ---help---
  110. A pseudo terminal (PTY) is a software device consisting of two
  111. halves: a master and a slave. The slave device behaves identical to
  112. a physical terminal; the master device is used by a process to
  113. read data from and write data to the slave, thereby emulating a
  114. terminal. Typical programs for the master side are telnet servers
  115. and xterms.
  116. Linux has traditionally used the BSD-like names /dev/ptyxx for
  117. masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
  118. has a number of problems. The GNU C library glibc 2.1 and later,
  119. however, supports the Unix98 naming standard: in order to acquire a
  120. pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
  121. terminal is then made available to the process and the pseudo
  122. terminal slave can be accessed as /dev/pts/<number>. What was
  123. traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
  124. The entries in /dev/pts/ are created on the fly by a virtual
  125. file system; therefore, if you say Y here you should say Y to
  126. "/dev/pts file system for Unix98 PTYs" as well.
  127. If you want to say Y here, you need to have the C library glibc 2.1
  128. or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
  129. Read the instructions in <file:Documentation/Changes> pertaining to
  130. pseudo terminals. It's safe to say N.
  131. config UNIX98_PTY_COUNT
  132. int "Maximum number of Unix98 PTYs in use (0-2048)"
  133. depends on UNIX98_PTYS
  134. default "256"
  135. help
  136. The maximum number of Unix98 PTYs that can be used at any one time.
  137. The default is 256, and should be enough for desktop systems. Server
  138. machines which support incoming telnet/rlogin/ssh connections and/or
  139. serve several X terminals may want to increase this: every incoming
  140. connection and every xterm uses up one PTY.
  141. When not in use, each additional set of 256 PTYs occupy
  142. approximately 8 KB of kernel memory on 32-bit architectures.
  143. source "drivers/char/pcmcia/Kconfig"
  144. source "drivers/serial/Kconfig"
  145. source "drivers/i2c/Kconfig"
  146. source "drivers/hwmon/Kconfig"
  147. source "drivers/usb/Kconfig"
  148. endmenu
  149. source "fs/Kconfig"
  150. source "arch/h8300/Kconfig.debug"
  151. source "security/Kconfig"
  152. source "crypto/Kconfig"
  153. source "lib/Kconfig"