Kconfig 6.9 KB

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  1. config CCW
  2. bool
  3. default y
  4. source "drivers/block/Kconfig"
  5. source "drivers/md/Kconfig"
  6. menu "Character device drivers"
  7. config UNIX98_PTYS
  8. bool "Unix98 PTY support"
  9. ---help---
  10. A pseudo terminal (PTY) is a software device consisting of two
  11. halves: a master and a slave. The slave device behaves identical to
  12. a physical terminal; the master device is used by a process to
  13. read data from and write data to the slave, thereby emulating a
  14. terminal. Typical programs for the master side are telnet servers
  15. and xterms.
  16. Linux has traditionally used the BSD-like names /dev/ptyxx for
  17. masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
  18. has a number of problems. The GNU C library glibc 2.1 and later,
  19. however, supports the Unix98 naming standard: in order to acquire a
  20. pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
  21. terminal is then made available to the process and the pseudo
  22. terminal slave can be accessed as /dev/pts/<number>. What was
  23. traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
  24. The entries in /dev/pts/ are created on the fly by a virtual
  25. file system; therefore, if you say Y here you should say Y to
  26. "/dev/pts file system for Unix98 PTYs" as well.
  27. If you want to say Y here, you need to have the C library glibc 2.1
  28. or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
  29. Read the instructions in <file:Documentation/Changes> pertaining to
  30. pseudo terminals. It's safe to say N.
  31. config UNIX98_PTY_COUNT
  32. int "Maximum number of Unix98 PTYs in use (0-2048)"
  33. depends on UNIX98_PTYS
  34. default "256"
  35. help
  36. The maximum number of Unix98 PTYs that can be used at any one time.
  37. The default is 256, and should be enough for desktop systems. Server
  38. machines which support incoming telnet/rlogin/ssh connections and/or
  39. serve several X terminals may want to increase this: every incoming
  40. connection and every xterm uses up one PTY.
  41. When not in use, each additional set of 256 PTYs occupy
  42. approximately 8 KB of kernel memory on 32-bit architectures.
  43. source "drivers/char/watchdog/Kconfig"
  44. comment "S/390 character device drivers"
  45. config TN3270
  46. tristate "Support for locally attached 3270 terminals"
  47. help
  48. Include support for IBM 3270 terminals.
  49. config TN3270_TTY
  50. tristate "Support for tty input/output on 3270 terminals"
  51. depends on TN3270
  52. help
  53. Include support for using an IBM 3270 terminal as a Linux tty.
  54. config TN3270_FS
  55. tristate "Support for fullscreen applications on 3270 terminals"
  56. depends on TN3270
  57. help
  58. Include support for fullscreen applications on an IBM 3270 terminal.
  59. config TN3270_CONSOLE
  60. bool "Support for console on 3270 terminal"
  61. depends on TN3270=y && TN3270_TTY=y
  62. help
  63. Include support for using an IBM 3270 terminal as a Linux system
  64. console. Available only if 3270 support is compiled in statically.
  65. config TN3215
  66. bool "Support for 3215 line mode terminal"
  67. help
  68. Include support for IBM 3215 line-mode terminals.
  69. config TN3215_CONSOLE
  70. bool "Support for console on 3215 line mode terminal"
  71. depends on TN3215
  72. help
  73. Include support for using an IBM 3215 line-mode terminal as a
  74. Linux system console.
  75. config CCW_CONSOLE
  76. bool
  77. depends on TN3215_CONSOLE || TN3270_CONSOLE
  78. default y
  79. config SCLP
  80. bool "Support for SCLP"
  81. help
  82. Include support for the SCLP interface to the service element.
  83. config SCLP_TTY
  84. bool "Support for SCLP line mode terminal"
  85. depends on SCLP
  86. help
  87. Include support for IBM SCLP line-mode terminals.
  88. config SCLP_CONSOLE
  89. bool "Support for console on SCLP line mode terminal"
  90. depends on SCLP_TTY
  91. help
  92. Include support for using an IBM HWC line-mode terminal as the Linux
  93. system console.
  94. config SCLP_VT220_TTY
  95. bool "Support for SCLP VT220-compatible terminal"
  96. depends on SCLP
  97. help
  98. Include support for an IBM SCLP VT220-compatible terminal.
  99. config SCLP_VT220_CONSOLE
  100. bool "Support for console on SCLP VT220-compatible terminal"
  101. depends on SCLP_VT220_TTY
  102. help
  103. Include support for using an IBM SCLP VT220-compatible terminal as a
  104. Linux system console.
  105. config SCLP_CPI
  106. tristate "Control-Program Identification"
  107. depends on SCLP
  108. help
  109. This option enables the hardware console interface for system
  110. identification. This is commonly used for workload management and
  111. gives you a nice name for the system on the service element.
  112. Please select this option as a module since built-in operation is
  113. completely untested.
  114. You should only select this option if you know what you are doing,
  115. need this feature and intend to run your kernel in LPAR.
  116. config S390_TAPE
  117. tristate "S/390 tape device support"
  118. help
  119. Select this option if you want to access channel-attached tape
  120. devices on IBM S/390 or zSeries.
  121. If you select this option you will also want to select at
  122. least one of the tape interface options and one of the tape
  123. hardware options in order to access a tape device.
  124. This option is also available as a module. The module will be
  125. called tape390 and include all selected interfaces and
  126. hardware drivers.
  127. comment "S/390 tape interface support"
  128. depends on S390_TAPE
  129. config S390_TAPE_BLOCK
  130. bool "Support for tape block devices"
  131. depends on S390_TAPE
  132. help
  133. Select this option if you want to access your channel-attached tape
  134. devices using the block device interface. This interface is similar
  135. to CD-ROM devices on other platforms. The tapes can only be
  136. accessed read-only when using this interface. Have a look at
  137. <file:Documentation/s390/TAPE> for further information about creating
  138. volumes for and using this interface. It is safe to say "Y" here.
  139. comment "S/390 tape hardware support"
  140. depends on S390_TAPE
  141. config S390_TAPE_34XX
  142. tristate "Support for 3480/3490 tape hardware"
  143. depends on S390_TAPE
  144. help
  145. Select this option if you want to access IBM 3480/3490 magnetic
  146. tape subsystems and 100% compatibles.
  147. It is safe to say "Y" here.
  148. config VMLOGRDR
  149. tristate "Support for the z/VM recording system services (VM only)"
  150. depends on IUCV
  151. help
  152. Select this option if you want to be able to receive records collected
  153. by the z/VM recording system services, eg. from *LOGREC, *ACCOUNT or
  154. *SYMPTOM.
  155. This driver depends on the IUCV support driver.
  156. config VMCP
  157. tristate "Support for the z/VM CP interface (VM only)"
  158. help
  159. Select this option if you want to be able to interact with the control
  160. program on z/VM
  161. config MONREADER
  162. tristate "API for reading z/VM monitor service records"
  163. depends on IUCV
  164. help
  165. Character device driver for reading z/VM monitor service records
  166. endmenu
  167. menu "Cryptographic devices"
  168. config Z90CRYPT
  169. tristate "Support for PCI-attached cryptographic adapters"
  170. default "m"
  171. help
  172. Select this option if you want to use a PCI-attached cryptographic
  173. adapter like the PCI Cryptographic Accelerator (PCICA) or the PCI
  174. Cryptographic Coprocessor (PCICC). This option is also available
  175. as a module called z90crypt.ko.
  176. endmenu