| config CCW |
| bool |
| default y |
| |
| source "drivers/block/Kconfig" |
| |
| source "drivers/md/Kconfig" |
| |
| |
| menu "Character device drivers" |
| |
| 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. |
| |
| config UNIX98_PTY_COUNT |
| int "Maximum number of Unix98 PTYs in use (0-2048)" |
| depends on UNIX98_PTYS |
| default "256" |
| help |
| The maximum number of Unix98 PTYs that can be used at any one time. |
| The default is 256, and should be enough for desktop systems. Server |
| machines which support incoming telnet/rlogin/ssh connections and/or |
| serve several X terminals may want to increase this: every incoming |
| connection and every xterm uses up one PTY. |
| |
| When not in use, each additional set of 256 PTYs occupy |
| approximately 8 KB of kernel memory on 32-bit architectures. |
| |
| config HANGCHECK_TIMER |
| tristate "Hangcheck timer" |
| help |
| The hangcheck-timer module detects when the system has gone |
| out to lunch past a certain margin. It can reboot the system |
| or merely print a warning. |
| |
| source "drivers/char/watchdog/Kconfig" |
| |
| comment "S/390 character device drivers" |
| |
| config TN3270 |
| tristate "Support for locally attached 3270 terminals" |
| help |
| Include support for IBM 3270 terminals. |
| |
| config TN3270_TTY |
| tristate "Support for tty input/output on 3270 terminals" |
| depends on TN3270 |
| help |
| Include support for using an IBM 3270 terminal as a Linux tty. |
| |
| config TN3270_FS |
| tristate "Support for fullscreen applications on 3270 terminals" |
| depends on TN3270 |
| help |
| Include support for fullscreen applications on an IBM 3270 terminal. |
| |
| config TN3270_CONSOLE |
| bool "Support for console on 3270 terminal" |
| depends on TN3270=y && TN3270_TTY=y |
| help |
| Include support for using an IBM 3270 terminal as a Linux system |
| console. Available only if 3270 support is compiled in statically. |
| |
| config TN3215 |
| bool "Support for 3215 line mode terminal" |
| help |
| Include support for IBM 3215 line-mode terminals. |
| |
| config TN3215_CONSOLE |
| bool "Support for console on 3215 line mode terminal" |
| depends on TN3215 |
| help |
| Include support for using an IBM 3215 line-mode terminal as a |
| Linux system console. |
| |
| config CCW_CONSOLE |
| bool |
| depends on TN3215_CONSOLE || TN3270_CONSOLE |
| default y |
| |
| config SCLP |
| bool "Support for SCLP" |
| help |
| Include support for the SCLP interface to the service element. |
| |
| config SCLP_TTY |
| bool "Support for SCLP line mode terminal" |
| depends on SCLP |
| help |
| Include support for IBM SCLP line-mode terminals. |
| |
| config SCLP_CONSOLE |
| bool "Support for console on SCLP line mode terminal" |
| depends on SCLP_TTY |
| help |
| Include support for using an IBM HWC line-mode terminal as the Linux |
| system console. |
| |
| config SCLP_VT220_TTY |
| bool "Support for SCLP VT220-compatible terminal" |
| depends on SCLP |
| help |
| Include support for an IBM SCLP VT220-compatible terminal. |
| |
| config SCLP_VT220_CONSOLE |
| bool "Support for console on SCLP VT220-compatible terminal" |
| depends on SCLP_VT220_TTY |
| help |
| Include support for using an IBM SCLP VT220-compatible terminal as a |
| Linux system console. |
| |
| config SCLP_CPI |
| tristate "Control-Program Identification" |
| depends on SCLP |
| help |
| This option enables the hardware console interface for system |
| identification. This is commonly used for workload management and |
| gives you a nice name for the system on the service element. |
| Please select this option as a module since built-in operation is |
| completely untested. |
| You should only select this option if you know what you are doing, |
| need this feature and intend to run your kernel in LPAR. |
| |
| config S390_TAPE |
| tristate "S/390 tape device support" |
| help |
| Select this option if you want to access channel-attached tape |
| devices on IBM S/390 or zSeries. |
| If you select this option you will also want to select at |
| least one of the tape interface options and one of the tape |
| hardware options in order to access a tape device. |
| This option is also available as a module. The module will be |
| called tape390 and include all selected interfaces and |
| hardware drivers. |
| |
| comment "S/390 tape interface support" |
| depends on S390_TAPE |
| |
| config S390_TAPE_BLOCK |
| bool "Support for tape block devices" |
| depends on S390_TAPE |
| help |
| Select this option if you want to access your channel-attached tape |
| devices using the block device interface. This interface is similar |
| to CD-ROM devices on other platforms. The tapes can only be |
| accessed read-only when using this interface. Have a look at |
| <file:Documentation/s390/TAPE> for further information about creating |
| volumes for and using this interface. It is safe to say "Y" here. |
| |
| comment "S/390 tape hardware support" |
| depends on S390_TAPE |
| |
| config S390_TAPE_34XX |
| tristate "Support for 3480/3490 tape hardware" |
| depends on S390_TAPE |
| help |
| Select this option if you want to access IBM 3480/3490 magnetic |
| tape subsystems and 100% compatibles. |
| It is safe to say "Y" here. |
| |
| config S390_TAPE_3590 |
| tristate "Support for 3590 tape hardware" |
| depends on S390_TAPE |
| help |
| Select this option if you want to access IBM 3590 magnetic |
| tape subsystems and 100% compatibles. |
| It is safe to say "Y" here. |
| |
| config VMLOGRDR |
| tristate "Support for the z/VM recording system services (VM only)" |
| depends on IUCV |
| help |
| Select this option if you want to be able to receive records collected |
| by the z/VM recording system services, eg. from *LOGREC, *ACCOUNT or |
| *SYMPTOM. |
| This driver depends on the IUCV support driver. |
| |
| config VMCP |
| tristate "Support for the z/VM CP interface (VM only)" |
| help |
| Select this option if you want to be able to interact with the control |
| program on z/VM |
| |
| |
| config MONREADER |
| tristate "API for reading z/VM monitor service records" |
| depends on IUCV |
| help |
| Character device driver for reading z/VM monitor service records |
| |
| endmenu |
| |
| menu "Cryptographic devices" |
| |
| endmenu |