2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
16 This enables support for systems with more than one CPU. If you have
17 a system with only one CPU, like most personal computers, say N. If
18 you have a system with more than one CPU, say Y.
20 If you say N here, the kernel will run on single and multiprocessor
21 machines, but will use only one CPU of a multiprocessor machine. If
22 you say Y here, the kernel will run on many, but not all,
23 singleprocessor machines. On a singleprocessor machine, the kernel
24 will run faster if you say N here.
26 Note that if you say Y here and choose architecture "586" or
27 "Pentium" under "Processor family", the kernel will not work on 486
28 architectures. Similarly, multiprocessor kernels for the "PPro"
29 architecture may not work on all Pentium based boards.
31 People using multiprocessor machines who say Y here should also say
32 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
33 Management" code will be disabled if you say Y here.
35 See also the <file:Documentation/smp.tex>,
36 <file:Documentation/smp.txt>, <file:Documentation/i386/IO-APIC.txt>,
37 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
38 <http://www.tldp.org/docs.html#howto>.
40 If you don't know what to do here, say N.
42 config GENERIC_ISA_DMA
47 mainmenu "Linux Kernel Configuration"
52 menu "Machine selection"
55 bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
56 depends on EXPERIMENTAL
58 This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
59 kernel that runs on these, say Y here. For details about Linux on
60 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
61 <http://oss.sgi.com/mips/>.
64 bool "Support for Algorithmics P4032 (EXPERIMENTAL)"
65 depends on EXPERIMENTAL
67 This is an evaluation board of the British company Algorithmics.
68 The board uses the R4300 and a R5230 CPUs. For more information
69 about this board see <http://www.algor.co.uk/>.
72 bool "Support for BAGET MIPS series (EXPERIMENTAL)"
73 depends on EXPERIMENTAL
75 This enables support for the Baget, a Russian embedded system. For
76 more details about the Baget see the Linux/MIPS FAQ on
77 <http://oss.sgi.com/mips/>.
80 bool "Support for DECstations (EXPERIMENTAL)"
81 depends on EXPERIMENTAL
83 This enables support for DEC's MIPS based workstations. For details
84 see the Linux/MIPS FAQ on <http://oss.sgi.com/mips/> and the
85 DECstation porting pages on <http://decstation.unix-ag.org/>.
87 If you have one of the following DECstation Models you definitely
88 want to choose R4xx0 for the CPU Type:
95 otherwise choose R3000.
98 bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
99 depends on EXPERIMENTAL
101 This enables support for the VR5000-based NEC DDB Vrc-5074
105 bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
106 depends on EXPERIMENTAL
108 This is an evaluation board based on the Galielo GT-96100 LAN/WAN
109 communications controllers containing a MIPS R5000 compatible core
110 running at 83MHz. Their website is <http://www.galileot.com/>. Say Y
111 here if you wish to build a kernel for this platform.
114 bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
115 depends on EXPERIMENTAL
117 This is an evaluation board based on the Galileo GT-64120
118 single-chip system controller that contains a MIPS R5000 compatible
119 core running at 75/100MHz. Their website is located at
120 <http://www.galileot.com/>. Say Y here if you wish to build a
121 kernel for this platform.
124 bool "Enable Second PCI (PCI1)"
125 depends on MIPS_EV64120
128 prompt "Galileo Chip Clock"
129 depends on MIPS_EV64120
143 bool "Support for MIPS Atlas board (EXPERIMENTAL)"
144 depends on EXPERIMENTAL
146 This enables support for the QED R5231-based MIPS Atlas evaluation
150 bool "Support for MIPS Malta board (EXPERIMENTAL)"
151 depends on EXPERIMENTAL
153 This enables support for the VR5000-based MIPS Malta evaluation
157 bool "Support for Philips Nino (EXPERIMENTAL)"
158 depends on EXPERIMENTAL
160 Say Y here to select a kernel for the Philips Nino Palm PC. The
161 website at <http://www.realitydiluted.com/projects/nino/index.html>
162 will have more information.
165 prompt "Nino Model Number"
169 bool "Model-300/301/302/319"
171 Say Y here to build a kernel specifically for Nino Palm PCs with
172 4MB of memory. These include models 300/301/302/319.
175 bool "Model-200/210/312/320/325/350/390"
177 Say Y here to build a kernel specifically for Nino Palm PCs with
178 8MB of memory. These include models 200/210/312/320/325/350/390.
183 Say Y here to build a kernel specifically for Nino 500/501 color
184 Palm PCs from Philips (INCOMPLETE).
188 config MIPS_MAGNUM_4000
189 bool "Support for Mips Magnum 4000"
191 This is a machine with a R4000 100 MHz CPU. To compile a Linux
192 kernel that runs on these, say Y here. For details about Linux on
193 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
194 <http://oss.sgi.com/mips/>.
196 config MOMENCO_OCELOT
197 bool "Support for Momentum Ocelot board"
199 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
200 Momentum Computer <http://www.momenco.com/>.
203 bool "Support for NEC DDB Vrc-5476"
205 This enables support for the R5432-based NEC DDB Vrc-5476
208 Features : kernel debugging, serial terminal, NFS root fs, on-board
209 ether port (Need an additional patch at <http://linux.junsun.net/>),
210 USB, AC97, PCI, PCI VGA card & framebuffer console, IDE controller,
211 PS2 keyboard, PS2 mouse, etc.
214 bool "Support for NEC DDB Vrc-5477"
216 This enables support for the R5432-based NEC DDB Vrc-5477
219 Features : kernel debugging, serial terminal, NFS root fs, on-board
220 ether port (Need an additional patch at <http://linux.junsun.net/>),
224 bool "Support for Olivetti M700-10"
226 This is a machine with a R4000 100 MHz CPU. To compile a Linux
227 kernel that runs on these, say Y here. For details about Linux on
228 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
229 <http://oss.sgi.com/mips/>.
232 bool "Support for SGI IP22"
234 This are the SGI Indy, Challenge S and Indigo2, as well as certain
235 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
236 that runs on these, say Y here.
239 bool "Support for SNI RM200 PCI"
241 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
242 Nixdorf Informationssysteme (SNI), parent company of Pyramid
243 Technology and now in turn merged with Fujitsu. Say Y here to
244 support this machine type.
247 bool "Support for ITE 8172G board"
249 Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
250 with ATX form factor that utilizes a MIPS R5000 to work with its
251 ITE8172G companion internet appliance chip. The MIPS core can be
252 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
253 a kernel for this platform.
256 bool "Support for older IT8172 (Rev C)"
257 depends on MIPS_ITE8172
259 Say Y here to support the older, Revision C version of the Integrated
260 Technology Express, Inc. ITE8172 SBC. Vendor page at
261 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
262 board at <http://www.mvista.com/allies/semiconductor/ite.html>.
264 config QTRONIX_KEYBOARD
265 bool "Enable Qtronix 990P Keyboard Support"
266 depends on MIPS_IVR || MIPS_ITE8172
268 Images of Qtronix keyboards are at
269 <http://www.qtronix.com/keyboard.html>.
273 depends on QTRONIX_KEYBOARD && (MIPS_IVR || MIPS_ITE8172)
277 bool "Enable PS2 Keyboard Support" if MIPS_ITE8172 && !QTRONIX_KEYBOARD
278 default y if NINO || MIPS_ITE8172 || DDB5476 || DDB5074 || SNI_RM200_PCI || SGI_IP22 || ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700
281 bool "Enable Smart Card Reader 0 Support "
282 depends on MIPS_IVR || MIPS_ITE8172
284 Say Y here to support smart-card reader 0 (SCR0) on the Integrated
285 Technology Express, Inc. ITE8172 SBC. Vendor page at
286 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
287 board at <http://www.mvista.com/allies/semiconductor/ite.html>.
290 bool "Enable Smart Card Reader 1 Support "
291 depends on MIPS_ITE8172
293 Say Y here to support smart-card reader 1 (SCR1) on the Integrated
294 Technology Express, Inc. ITE8172 SBC. Vendor page at
295 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
296 board at <http://www.mvista.com/allies/semiconductor/ite.html>.
299 bool "Support for Globespan IVR board"
301 This is an evaluation board built by Globespan to showcase thir
302 iVR (Internet Video Recorder) design. It utilizes a QED RM5231
303 R5000 MIPS core. More information can be found out their website
304 located at <http://www.globespan.net/products/product4.html>P. Say Y
305 here if you wish to build a kernel for this platform.
308 bool "Support for Alchemy Semi PB1000 board"
310 This is an evaluation board built by Alchemy Semiconducttor to
311 showcase their Au1000 Internet Edge Processor. It is SOC design
312 containing a MIPS32 core running at 266/400/500MHz with many
313 integrated peripherals. Further information can be found at their
314 website, <http://www.alchemysemi.com/>. Say Y here if you wish to
315 build a kernel for this platform.
317 config RWSEM_GENERIC_SPINLOCK
321 config RWSEM_XCHGADD_ALGORITHM
325 # Select some configuration options automatically for certain systems.
329 depends on DDB5476 || DDB5074 || SNI_RM200_PCI || ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700
332 Find out whether you have ISA slots on your motherboard. ISA is the
333 name of a bus system, i.e. the way the CPU talks to the other stuff
334 inside your box. Other bus systems are PCI, EISA, MicroChannel
335 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
336 newer boards don't support it. If you have ISA, say Y, otherwise N.
343 The Extended Industry Standard Architecture (EISA) bus was
344 developed as an open alternative to the IBM MicroChannel bus.
346 The EISA bus provided some of the features of the IBM MicroChannel
347 bus while maintaining backward compatibility with cards made for
348 the older ISA bus. The EISA bus saw limited use between 1988 and
349 1995 when it was made obsolete by the PCI bus.
351 Say Y here if you are building a kernel for an EISA-based machine.
357 depends on MIPS_IVR || MIPS_ITE8172 || DDB5477 || DDB5476 || DDB5074 || SNI_RM200_PCI || MOMENCO_OCELOT || MIPS_MALTA || MIPS_ATLAS || ALGOR_P4032 || MIPS_EV64120 || MIPS_EV96100
360 Find out whether you have a PCI motherboard. PCI is the name of a
361 bus system, i.e. the way the CPU talks to the other stuff inside
362 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
363 VESA. If you have PCI, say Y, otherwise N.
365 The PCI-HOWTO, available from
366 <http://www.tldp.org/docs.html#howto>, contains valuable
367 information about which PCI hardware does work under Linux and which
373 MicroChannel Architecture is found in some IBM PS/2 machines and
374 laptops. It is a bus system similar to PCI or ISA. See
375 <file:Documentation/mca.txt> (and especially the web page given
376 there) before attempting to build an MCA bus kernel.
383 depends on DDB5074 || SNI_RM200_PCI || MIPS_MALTA || ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700
388 depends on MIPS_EV96100
391 Say Y here to support the Galileo Technology GT96100 communications
392 controller card. There is a web page at <http://www.galileot.com/>.
396 depends on MOMENCO_OCELOT || MIPS_MALTA || MIPS_ATLAS || MIPS_EV96100
401 depends on MIPS_ITE8172 || MIPS_EV96100
406 depends on MIPS_ITE8172 || MIPS_EV96100
411 depends on MIPS_EV64120
416 depends on DDB5074 || SNI_RM200_PCI || SGI_IP22 || MOMENCO_OCELOT || ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ALGOR_P4032 || MIPS_EV64120
421 depends on SNI_RM200_PCI || SGI_IP22 || ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700
426 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
429 The frame buffer device provides an abstraction for the graphics
430 hardware. It represents the frame buffer of some video hardware and
431 allows application software to access the graphics hardware through
432 a well-defined interface, so the software doesn't need to know
433 anything about the low-level (hardware register) stuff.
435 Frame buffer devices work identically across the different
436 architectures supported by Linux and make the implementation of
437 application programs easier and more portable; at this point, an X
438 server exists which uses the frame buffer device exclusively.
439 On several non-X86 architectures, the frame buffer device is the
440 only way to use the graphics hardware.
442 The device is accessed through special device nodes, usually located
443 in the /dev directory, i.e. /dev/fb*.
445 You need an utility program called fbset to make full use of frame
446 buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
447 and the Framebuffer-HOWTO at
448 <http://www.tahallah.demon.co.uk/programming/prog.html> for more
451 Say Y here and to the driver for your graphics board below if you
452 are compiling a kernel for a non-x86 architecture.
454 If you are compiling for the x86 architecture, you can say Y if you
455 want to play with it, but it is not essential. Please note that
456 running graphical applications that directly touch the hardware
457 (e.g. an accelerated X server) and that are not frame buffer
458 device-aware may cause unexpected results. If unsure, say N.
462 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
467 depends on ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700
472 depends on DDB5476 || DDB5074 || SNI_RM200_PCI || ACER_PICA_61
475 config HAVE_STD_PC_SERIAL_PORT
477 depends on DDB5476 || DDB5074 || MIPS_MALTA
482 depends on MIPS_PB1000 || DDB5477 || SGI_IP22 || MOMENCO_OCELOT || MIPS_MALTA
487 depends on MOMENCO_OCELOT
502 depends on DDB5477 || DDB5476
505 config CPU_LITTLE_ENDIAN
510 Some MIPS machines can be configured for either little or big endian
511 byte order. These modes require different kernels. Say Y if your
512 machine is little endian, N if it's a big endian machine.
516 depends on MIPS_ITE8172
521 depends on MIPS_PB1000
526 depends on SYSCLK_100_1 || SYSCLK_100_2
541 Please make sure to pick the right CPU type. Linux/MIPS is not
542 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
543 *not* work on R4000 machines and vice versa. However, since most
544 of the supported machines have an R4000 (or similar) CPU, R4x00
545 might be a safe bet. If the resulting kernel does not work,
546 try to recompile with R3000.
548 R3000 MIPS Technologies R3000-series processors,
549 including the 3041, 3051, and 3081.
551 R6000 MIPS Technologies R6000-series processors,
552 including the 64474, 64475, 64574 and 64575.
554 R4300 MIPS Technologies R4300-series processors.
556 R4x00 MIPS Technologies R4000-series processors other than 4300,
557 including the 4640, 4650, and 4700.
559 R5000 MIPS Technologies R5000-series processors other than the
562 R52xx MIPS Technologies R52xx-series ("Nevada") processors.
564 R10000 MIPS Technologies R10000-series processors.
569 MIPS Technologies R6000-series processors, including the 64474,
570 64475, 64574 and 64575.
575 The options selects support for the NEC VR41xx series of processors.
576 Only choose this option if you have one of these processors as a
577 kernel built with this option will not run on any other type of
578 processor or vice versa.
583 MIPS Technologies R4300-series processors.
588 MIPS Technologies R4000-series processors other than 4300, including
589 the 4640, 4650, and 4700.
594 MIPS Technologies R5000-series processors other than the Nevada.
605 MIPS Technologies R52x0-series ("Nevada") processors.
610 MIPS Technologies R10000-series processors.
624 bool "Override CPU Options"
626 Saying yes here allows you to select support for various features
627 your CPU may or may not have. Most people should say N here.
630 bool "ll/sc Instructions available" if CPU_ADVANCED
631 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX
633 MIPS R4000 series and later provide the Load Linked (ll)
634 and Store Conditional (sc) instructions. More information is
635 available at <http://www.go-ecs.com/mips/miptek1.htm>.
637 Say Y here if your CPU has the ll and sc instructions. Say Y here
638 for better performance, N if you don't know. You must say Y here
639 for multiprocessor machines.
641 config CPU_HAS_LLDSCD
642 bool "lld/scd Instructions available" if CPU_ADVANCED
643 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_MIPS32
645 Say Y here if your CPU has the lld and scd instructions, the 64-bit
646 equivalents of ll and sc. Say Y here for better performance, N if
647 you don't know. You must say Y here for multiprocessor machines.
650 bool "Writeback Buffer available" if CPU_ADVANCED
651 default y if !CPU_ADVANCED && (CPU_R3000 || CPU_VR41XX) && CONFIG_DECSTATION=y
653 Say N here for slightly better performance. You must say Y here for
654 machines which require flushing of write buffers in software. Saying
655 Y is the safe option; N may result in kernel malfunction and crashes.
662 config CPU_LITTLE_ENDIAN
663 bool "Generate little endian code" if !DECSTATION && !DDB5074 && !DDB5476 && !NINO
664 default y if DECSTATION || DDB5074 || DDB5476 || NINO
671 If you enabled support for /proc file system then the file
672 /proc/kcore will contain the kernel core image. This can be used
675 $ cd /usr/src/linux ; gdb vmlinux /proc/kcore
677 You have two choices here: ELF and A.OUT. Selecting ELF will make
678 /proc/kcore appear in ELF core format as defined by the Executable
679 and Linking Format specification. Selecting A.OUT will choose the
680 old "a.out" format which may be necessary for some old versions
681 of binutils or on some architectures.
683 This is especially useful if you have compiled the kernel with the
684 "-g" option to preserve debugging information. It is mainly used
685 for examining kernel data structures on the live kernel so if you
686 don't understand what this means or are not a kernel hacker, just
687 leave it at its default value ELF.
694 bool "Include IRIX binary compatibility"
695 depends on !CPU_LITTLE_ENDIAN
697 config FORWARD_KEYBOARD
698 bool "Include forward keyboard"
699 depends on !CPU_LITTLE_ENDIAN
702 bool "ARC console support"
708 A.out (Assembler.OUTput) is a set of formats for libraries and
709 executables used in the earliest versions of UNIX. Linux used the
710 a.out formats QMAGIC and ZMAGIC until they were replaced with the
713 As more and more programs are converted to ELF, the use for a.out
714 will gradually diminish. If you disable this option it will reduce
715 your kernel by one page. This is not much and by itself does not
716 warrant removing support. However its removal is a good idea if you
717 wish to ensure that absolutely none of your programs will use this
718 older executable format. If you don't know what to answer at this
719 point then answer Y. If someone told you "You need a kernel with
720 QMAGIC support" then you'll have to say Y here. You may answer M to
721 compile a.out support as a module and later load the module when you
722 want to use a program or library in a.out format. The module will be
723 called binfmt_aout. Saying M or N here is dangerous though,
724 because some crucial programs on your system might still be in A.OUT
731 ELF (Executable and Linkable Format) is a format for libraries and
732 executables used across different architectures and operating
733 systems. Saying Y here will enable your kernel to run ELF binaries
734 and enlarge it by about 13 KB. ELF support under Linux has now all
735 but replaced the traditional Linux a.out formats (QMAGIC and ZMAGIC)
736 because it is portable (this does *not* mean that you will be able
737 to run executables from different architectures or operating systems
738 however) and makes building run-time libraries very easy. Many new
739 executables are distributed solely in ELF format. You definitely
742 Information about ELF is contained in the ELF HOWTO available from
743 <http://www.tldp.org/docs.html#howto>.
745 If you find that after upgrading from Linux kernel 1.2 and saying Y
746 here, you still can't run any ELF binaries (they just crash), then
747 you'll have to install the newest ELF runtime libraries, including
748 ld.so (check the file <file:Documentation/Changes> for location and
751 If you want to compile this as a module ( = code which can be
752 inserted in and removed from the running kernel whenever you want),
753 say M here and read <file:Documentation/modules.txt>. The module
754 will be called binfmt_elf. Saying M or N here is dangerous because
755 some crucial programs on your system might be in ELF format.
758 tristate "Kernel support for MISC binaries"
760 If you say Y here, it will be possible to plug wrapper-driven binary
761 formats into the kernel. You will like this especially when you use
762 programs that need an interpreter to run like Java, Python or
763 Emacs-Lisp. It's also useful if you often run DOS executables under
764 the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from
765 <http://www.tldp.org/docs.html#howto>). Once you have
766 registered such a binary class with the kernel, you can start one of
767 those programs simply by typing in its name at a shell prompt; Linux
768 will automatically feed it to the correct interpreter.
770 You can do other nice things, too. Read the file
771 <file:Documentation/binfmt_misc.txt> to learn how to use this
772 feature, and <file:Documentation/java.txt> for information about how
773 to include Java support.
775 You must say Y to "/proc file system support" (CONFIG_PROC_FS) to
776 use this part of the kernel.
778 You may say M here for module support and later load the module when
779 you have use for it; the module is called binfmt_misc. If you
780 don't know what to answer at this point, say Y.
782 source "drivers/pci/Kconfig"
785 bool "Support for hot-pluggable devices"
787 Say Y here if you want to plug devices into your computer while
788 the system is running, and be able to use them quickly. In many
789 cases, the devices can likewise be unplugged at any time too.
791 One well known example of this is PCMCIA- or PC-cards, credit-card
792 size devices such as network cards, modems or hard drives which are
793 plugged into slots found on all modern laptop computers. Another
794 example, used on modern desktops as well as laptops, is USB.
796 Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
797 software (at <http://linux-hotplug.sourceforge.net/>) and install it.
798 Then your kernel will automatically call out to a user mode "policy
799 agent" (/sbin/hotplug) to load modules and set up software needed
800 to use devices as you hotplug them.
802 source "drivers/pcmcia/Kconfig"
805 bool "TURBOchannel support"
806 depends on DECSTATION
808 TurboChannel is a DEC (now Compaq) bus for Alpha and MIPS processors.
809 Documentation on writing device drivers for TurboChannel is available at:
810 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
812 # if [ "$CONFIG_TC" = "y" ]; then
813 # bool ' Access.Bus support' CONFIG_ACCESSBUS
819 source "drivers/pnp/Kconfig"
822 source "drivers/mtd/Kconfig"
824 source "drivers/parport/Kconfig"
826 source "drivers/block/Kconfig"
828 source "drivers/md/Kconfig"
831 menu "ATA/ATAPI/MFM/RLL support"
832 depends on !SGI_IP22 && !DECSTATION
835 tristate "ATA/ATAPI/MFM/RLL support"
837 If you say Y here, your kernel will be able to manage low cost mass
838 storage units such as ATA/(E)IDE and ATAPI units. The most common
839 cases are IDE hard drives and ATAPI CD-ROM drives.
841 If your system is pure SCSI and doesn't use these interfaces, you
844 Integrated Disk Electronics (IDE aka ATA-1) is a connecting standard
845 for mass storage units such as hard disks. It was designed by
846 Western Digital and Compaq Computer in 1984. It was then named
847 ST506. Quite a number of disks use the IDE interface.
849 AT Attachment (ATA) is the superset of the IDE specifications.
850 ST506 was also called ATA-1.
852 Fast-IDE is ATA-2 (also named Fast ATA), Enhanced IDE (EIDE) is
853 ATA-3. It provides support for larger disks (up to 8.4GB by means of
854 the LBA standard), more disks (4 instead of 2) and for other mass
855 storage units such as tapes and cdrom. UDMA/33 (aka UltraDMA/33) is
856 ATA-4 and provides faster (and more CPU friendly) transfer modes
857 than previous PIO (Programmed processor Input/Output) from previous
858 ATA/IDE standards by means of fast DMA controllers.
860 ATA Packet Interface (ATAPI) is a protocol used by EIDE tape and
861 CD-ROM drives, similar in many respects to the SCSI protocol.
863 SMART IDE (Self Monitoring, Analysis and Reporting Technology) was
864 designed in order to prevent data corruption and disk crash by
865 detecting pre hardware failure conditions (heat, access time, and
866 the like...). Disks built since June 1995 may follow this standard.
867 The kernel itself don't manage this; however there are quite a
868 number of user programs such as smart that can query the status of
869 SMART parameters disk.
871 If you want to compile this driver as a module ( = code which can be
872 inserted in and removed from the running kernel whenever you want),
873 say M here and read <file:Documentation/modules.txt>. The module
876 For further information, please read <file:Documentation/ide.txt>.
880 source "drivers/ide/Kconfig"
888 tristate "SCSI support"
890 If you want to use a SCSI hard disk, SCSI tape drive, SCSI CD-ROM or
891 any other SCSI device under Linux, say Y and make sure that you know
892 the name of your SCSI host adapter (the card inside your computer
893 that "speaks" the SCSI protocol, also called SCSI controller),
894 because you will be asked for it.
896 You also need to say Y here if you want support for the parallel
897 port version of the 100 MB IOMEGA ZIP drive.
899 This driver is also available as a module ( = code which can be
900 inserted in and removed from the running kernel whenever you want).
901 The module will be called scsi_mod. If you want to compile it as
902 a module, say M here and read <file:Documentation/modules.txt> and
903 <file:Documentation/scsi/scsi.txt>. However, do not compile this as a
904 module if your root file system (the one containing the directory /)
905 is located on a SCSI device.
907 source "drivers/scsi/Kconfig"
912 if !DECSTATION && !SGI_IP22
913 source "drivers/message/i2o/Kconfig"
918 source "net/ax25/Kconfig"
920 source "net/irda/Kconfig"
922 source "drivers/isdn/Kconfig"
924 source "drivers/telephony/Kconfig"
927 menu "Old CD-ROM drivers (not SCSI, not IDE)"
930 bool "Support non-SCSI/IDE/ATAPI CDROM drives"
932 If you have a CD-ROM drive that is neither SCSI nor IDE/ATAPI, say Y
933 here, otherwise N. Read the CD-ROM-HOWTO, available from
934 <http://www.tldp.org/docs.html#howto>.
936 Note that the answer to this question doesn't directly affect the
937 kernel: saying N will just cause the configurator to skip all
938 the questions about these CD-ROM drives. If you are unsure what you
939 have, say Y and find out whether you have one of the following
942 For each of these drivers, a file Documentation/cdrom/{driver_name}
943 exists. Especially in cases where you do not know exactly which kind
944 of drive you have you should read there. Most of these drivers use a
945 file drivers/cdrom/{driver_name}.h where you can define your
946 interface parameters and switch some internal goodies.
948 All these CD-ROM drivers are also usable as a module ( = code which
949 can be inserted in and removed from the running kernel whenever you
950 want). If you want to compile them as module, say M instead of Y and
951 read <file:Documentation/modules.txt>.
953 If you want to use any of these CD-ROM drivers, you also have to
954 answer Y or M to "ISO 9660 CD-ROM file system support" below (this
955 answer will get "defaulted" for you if you enable any of the Linux
958 source "drivers/cdrom/Kconfig"
962 source "drivers/input/Kconfig"
964 source "drivers/char/Kconfig"
966 source "drivers/media/Kconfig"
969 menu "DECStation Character devices"
970 depends on DECSTATION
973 bool "Virtual terminal"
976 bool "Support for console on virtual terminal"
980 tristate "Standard/generic (dumb) serial support"
982 This selects whether you want to include the driver for the standard
983 serial ports. The standard answer is Y. People who might say N
984 here are those that are setting up dedicated Ethernet WWW/FTP
985 servers, or users that have one of the various bus mice instead of a
986 serial mouse and don't intend to use their machine's standard serial
987 port for anything. (Note that the Cyclades and Stallion multi
988 serial port drivers do not need this driver built in for them to
991 If you want to compile this driver as a module, say M here and read
992 <file:Documentation/modules.txt>. The module will be called
994 [WARNING: Do not compile this driver as a module if you are using
995 non-standard serial ports, since the configuration information will
996 be lost when the driver is unloaded. This limitation may be lifted
999 BTW1: If you have a mouseman serial mouse which is not recognized by
1000 the X window system, try running gpm first.
1002 BTW2: If you intend to use a software modem (also called Winmodem)
1003 under Linux, forget it. These modems are crippled and require
1004 proprietary drivers which are only available under Windows.
1006 Most people will say Y or M here, so that they can use serial mice,
1007 modems and similar devices connecting to the standard serial ports.
1010 bool "DZ11 Serial Support"
1013 DZ11-family serial controllers for VAXstations, including the
1014 DC7085, M7814, and M7819.
1017 bool "Z85C30 Serial Support"
1018 depends on SERIAL=y && TC
1020 Documentation on the Zilog 85C350 serial communications controller
1021 is downloadable at <http://www.zilog.com/pdfs/serial/z85c30.pdf>.
1023 config SERIAL_CONSOLE
1024 bool "Support for console on serial port"
1027 If you say Y here, it will be possible to use a serial port as the
1028 system console (the system console is the device which receives all
1029 kernel messages and warnings and which allows logins in single user
1030 mode). This could be useful if some terminal or printer is connected
1031 to that serial port.
1033 Even if you say Y here, the currently visible virtual console
1034 (/dev/tty0) will still be used as the system console by default, but
1035 you can alter that using a kernel command line option such as
1036 "console=ttyS1". (Try "man bootparam" or see the documentation of
1037 your boot loader (lilo or loadlin) about how to pass options to the
1038 kernel at boot time.)
1040 If you don't have a VGA card installed and you say Y here, the
1041 kernel will automatically use the first serial line, /dev/ttyS0, as
1047 bool "Unix98 PTY support"
1049 config UNIX98_PTY_COUNT
1050 int "Maximum number of Unix98 PTYs in use (0-2048)"
1051 depends on UNIX98_PTYS
1054 # if [ "$CONFIG_ACCESSBUS" = "y" ]; then
1055 # bool 'MAXINE Access.Bus mouse (VSXXX-BB/GB) support' CONFIG_DTOP_MOUSE
1058 tristate "Enhanced Real Time Clock Support"
1063 menu "SGI Character devices"
1067 bool "Virtual terminal"
1070 bool "Support for console on virtual terminal"
1074 bool "PS/2 mouse support (aka \"auxiliary device\")"
1076 The PS/2 mouse connects to a special mouse port that looks much like
1077 the keyboard port (small circular connector with 6 pins). This way,
1078 the mouse does not use any serial ports. This port can also be used
1079 for other input devices like light pens, tablets, keypads. Compaq,
1080 AST and IBM all use this as their mouse port on currently shipping
1081 machines. The trackballs of some laptops are PS/2 mice also. In
1082 particular, the C&T 82C710 mouse on TI Travelmates is a PS/2 mouse.
1084 Although PS/2 mice are not technically bus mice, they are explained
1085 in detail in the Busmouse-HOWTO, available from
1086 <http://www.tldp.org/docs.html#howto>.
1088 When using a PS/2 mouse, you can get problems if you want to use the
1089 mouse both on the Linux console and under X. Using the "-R" option
1090 of the Linux mouse managing program gpm (available from
1091 <ftp://gnu.systemy.it/pub/gpm/>) solves this problem, or you can get
1092 the "mconv2" utility from <ftp://ibiblio.org/pub/Linux/system/mouse/>.
1099 This is for machines with a mouse which is neither a serial nor a
1100 bus mouse. Examples are PS/2 mice (such as the track balls on some
1101 laptops) and some digitizer pads. Most people have a regular serial
1102 MouseSystem or Microsoft mouse (made by Logitech) that plugs into a
1103 COM port (rectangular with 9 or 25 pins). These people say N here.
1104 If you have something else, read the Busmouse-HOWTO, available from
1105 <http://www.tldp.org/docs.html#howto>. This HOWTO contains
1106 information about all non-serial mice, not just bus mice.
1108 If you have a laptop, you either have to check the documentation or
1109 experiment a bit to find out whether the trackball is a serial mouse
1110 or not; it's best to say Y here for you.
1112 Note that the answer to this question won't directly affect the
1113 kernel: saying N will just cause the configurator to skip all
1114 the questions about non-serial mice. If unsure, say Y.
1117 bool "Unix98 PTY support"
1119 config UNIX98_PTY_COUNT
1120 int "Maximum number of Unix98 PTYs in use (0-2048)"
1121 depends on UNIX98_PTYS
1128 source "drivers/video/Kconfig"
1131 depends on !DECSTATION
1134 tristate "Sound card support"
1136 If you have a sound card in your computer, i.e. if it can say more
1137 than an occasional beep, say Y. Be sure to have all the information
1138 about your sound card and its configuration down (I/O port,
1139 interrupt and DMA channel), because you will be asked for it.
1141 You want to read the Sound-HOWTO, available from
1142 <http://www.tldp.org/docs.html#howto>. General information about
1143 the modular sound system is contained in the files
1144 <file:Documentation/sound/Introduction>. The file
1145 <file:Documentation/sound/README.OSS> contains some slightly
1146 outdated but still useful information as well.
1148 If you have a PnP sound card and you want to configure it at boot
1149 time using the ISA PnP tools (read
1150 <http://www.roestock.demon.co.uk/isapnptools/>), then you need to
1151 compile the sound card support as a module ( = code which can be
1152 inserted in and removed from the running kernel whenever you want)
1153 and load that module after the PnP configuration is finished. To do
1154 this, say M here and read <file:Documentation/modules.txt> as well
1155 as <file:Documentation/sound/README.modules>; the module will be
1158 I'm told that even without a sound card, you can make your computer
1159 say more than an occasional beep, by programming the PC speaker.
1160 Kernel patches and supporting utilities to do that are in the pcsp
1161 package, available at <ftp://ftp.infradead.org/pub/pcsp/>.
1163 source "sound/Kconfig"
1167 source "drivers/sgi/Kconfig"
1169 source "drivers/usb/Kconfig"
1172 menu "Kernel hacking"
1175 bool "Are you using a crosscompiler"
1177 Say Y here if you are compiling the kernel on a different
1178 architecture than the one it is intended to run on.
1181 bool "Remote GDB kernel debugging"
1182 depends on SERIAL=y || AU1000_UART
1184 If you say Y here, it will be possible to remotely debug the MIPS
1185 kernel using gdb. This enlarges your kernel image disk size by
1186 several megabytes and requires a machine with more than 16 MB,
1187 better 32 MB RAM to avoid excessive linking time. This is only
1188 useful for kernel hackers. If unsure, say N.
1191 bool "Console output to GDB"
1192 depends on REMOTE_DEBUG
1194 If you are using GDB for remote debugging over a serial port and
1195 would like kernel messages to be formatted into GDB $O packets so
1196 that GDB prints them as program output, say 'Y'.
1199 bool "Low-level debugging"
1202 Enable low-level debugging assertion macros in the kernel code.
1203 Currently used only by the time services code in the MIPS port.
1204 Don't turn this on unless you know what you are doing.
1207 bool "Magic SysRq key"
1209 If you say Y here, you will have some control over the system even
1210 if the system crashes for example during kernel debugging (e.g., you
1211 will be able to flush the buffer cache to disk, reboot the system
1212 immediately or dump some status information). This is accomplished
1213 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1214 also works on a serial console (on PC hardware at least), if you
1215 send a BREAK and then within 5 seconds a command keypress. The
1216 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1217 unless you really know what this hack does.
1219 config MIPS_UNCACHED
1223 If you say Y here there kernel will disable all CPU caches. This will
1224 reduce the system's performance dramatically but can help finding
1225 otherwise hard to track bugs. It can also useful if you're doing
1226 hardware debugging with a logic analyzer and need to see all traffic
1230 int "Maximum number of CPUs (2-32)"
1236 source "security/Kconfig"
1238 source "crypto/Kconfig"
1240 source "lib/Kconfig"
1242 source "suse/Kconfig"