drivers/char/watchdog/Kconfig

   1 #
   2 # Watchdog device configuration
   3 #
   4
   5 menuconfig WATCHDOG
   6         bool "Watchdog Timer Support"
   7         ---help---
   8           If you say Y here (and to one of the following options) and create a
   9           character special file /dev/watchdog with major number 10 and minor
  10           number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
  11           subsequently opening the file and then failing to write to it for
  12           longer than 1 minute will result in rebooting the machine. This
  13           could be useful for a networked machine that needs to come back
  14           on-line as fast as possible after a lock-up. There's both a watchdog
  15           implementation entirely in software (which can sometimes fail to
  16           reboot the machine) and a driver for hardware watchdog boards, which
  17           are more robust and can also keep track of the temperature inside
  18           your computer. For details, read <file:Documentation/watchdog/watchdog.txt>
  19           in the kernel source.
  20
  21           The watchdog is usually used together with the watchdog daemon
  22           which is available from
  23           <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
  24           also monitor NFS connections and can reboot the machine when the process
  25           table is full.
  26
  27           If unsure, say N.
  28
  29 if WATCHDOG
  30
  31 config WATCHDOG_NOWAYOUT
  32         bool "Disable watchdog shutdown on close"
  33         help
  34           The default watchdog behaviour (which you get if you say N here) is
  35           to stop the timer if the process managing it closes the file
  36           /dev/watchdog. It's always remotely possible that this process might
  37           get killed. If you say Y here, the watchdog cannot be stopped once
  38           it has been started.
  39
  40 #
  41 # General Watchdog drivers
  42 #
  43
  44 comment "Watchdog Device Drivers"
  45
  46 # Architecture Independent
  47
  48 config SOFT_WATCHDOG
  49         tristate "Software watchdog"
  50         help
  51           A software monitoring watchdog. This will fail to reboot your system
  52           from some situations that the hardware watchdog will recover
  53           from. Equally it's a lot cheaper to install.
  54
  55           To compile this driver as a module, choose M here: the
  56           module will be called softdog.
  57
  58 # ARM Architecture
  59
  60 config AT91RM9200_WATCHDOG
  61         tristate "AT91RM9200 watchdog"
  62         depends on ARCH_AT91RM9200
  63         help
  64           Watchdog timer embedded into AT91RM9200 chips. This will reboot your
  65           system when the timeout is reached.
  66
  67 config 21285_WATCHDOG
  68         tristate "DC21285 watchdog"
  69         depends on FOOTBRIDGE
  70         help
  71           The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
  72           here if you wish to use this. Alternatively say M to compile the
  73           driver as a module, which will be called wdt285.
  74
  75           This driver does not work on all machines. In particular, early CATS
  76           boards have hardware problems that will cause the machine to simply
  77           lock up if the watchdog fires.
  78
  79           "If in doubt, leave it out" - say N.
  80
  81 config 977_WATCHDOG
  82         tristate "NetWinder WB83C977 watchdog"
  83         depends on FOOTBRIDGE && ARCH_NETWINDER
  84         help
  85           Say Y here to include support for the WB977 watchdog included in
  86           NetWinder machines. Alternatively say M to compile the driver as
  87           a module, which will be called wdt977.
  88
  89           Not sure? It's safe to say N.
  90
  91 config IXP2000_WATCHDOG
  92         tristate "IXP2000 Watchdog"
  93         depends on ARCH_IXP2000
  94         help
  95           Say Y here if to include support for the watchdog timer
  96           in the Intel IXP2000(2400, 2800, 2850) network processors.
  97           This driver can be built as a module by choosing M. The module
  98           will be called ixp2000_wdt.
  99
 100           Say N if you are unsure.
 101
 102 config IXP4XX_WATCHDOG
 103         tristate "IXP4xx Watchdog"
 104         depends on ARCH_IXP4XX
 105         help
 106           Say Y here if to include support for the watchdog timer
 107           in the Intel IXP4xx network processors. This driver can
 108           be built as a module by choosing M. The module will
 109           be called ixp4xx_wdt.
 110
 111           Note: The internal IXP4xx watchdog does a soft CPU reset
 112           which doesn't reset any peripherals. There are circumstances
 113           where the watchdog will fail to reset the board correctly
 114           (e.g., if the boot ROM is in an unreadable state).
 115
 116           Say N if you are unsure.
 117
 118 config KS8695_WATCHDOG
 119         tristate "KS8695 watchdog"
 120         depends on ARCH_KS8695
 121         help
 122           Watchdog timer embedded into KS8695 processor. This will reboot your
 123           system when the timeout is reached.
 124
 125 config S3C2410_WATCHDOG
 126         tristate "S3C2410 Watchdog"
 127         depends on ARCH_S3C2410
 128         help
 129           Watchdog timer block in the Samsung S3C2410 chips. This will
 130           reboot the system when the timer expires with the watchdog
 131           enabled.
 132
 133           The driver is limited by the speed of the system's PCLK
 134           signal, so with reasonably fast systems (PCLK around 50-66MHz)
 135           then watchdog intervals of over approximately 20seconds are
 136           unavailable.
 137
 138           The driver can be built as a module by choosing M, and will
 139           be called s3c2410_wdt
 140
 141 config SA1100_WATCHDOG
 142         tristate "SA1100/PXA2xx watchdog"
 143         depends on ARCH_SA1100 || ARCH_PXA
 144         help
 145           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 146           reboot your system when timeout is reached.
 147
 148           NOTE: once enabled, this timer cannot be disabled.
 149
 150           To compile this driver as a module, choose M here: the
 151           module will be called sa1100_wdt.
 152
 153 config MPCORE_WATCHDOG
 154         tristate "MPcore watchdog"
 155         depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
 156         help
 157           Watchdog timer embedded into the MPcore system.
 158
 159           To compile this driver as a module, choose M here: the
 160           module will be called mpcore_wdt.
 161
 162 config EP93XX_WATCHDOG
 163         tristate "EP93xx Watchdog"
 164         depends on ARCH_EP93XX
 165         help
 166           Say Y here if to include support for the watchdog timer
 167           embedded in the Cirrus Logic EP93xx family of devices.
 168
 169           To compile this driver as a module, choose M here: the
 170           module will be called ep93xx_wdt.
 171
 172 config OMAP_WATCHDOG
 173         tristate "OMAP Watchdog"
 174         depends on ARCH_OMAP16XX || ARCH_OMAP24XX
 175         help
 176           Support for TI OMAP1610/OMAP1710/OMAP2420 watchdog.  Say 'Y' here to
 177           enable the OMAP1610/OMAP1710 watchdog timer.
 178
 179 config PNX4008_WATCHDOG
 180         tristate "PNX4008 Watchdog"
 181         depends on ARCH_PNX4008
 182         help
 183           Say Y here if to include support for the watchdog timer
 184           in the PNX4008 processor.
 185           This driver can be built as a module by choosing M. The module
 186           will be called pnx4008_wdt.
 187
 188           Say N if you are unsure.
 189
 190 # AVR32 Architecture
 191
 192 config AT32AP700X_WDT
 193         tristate "AT32AP700x watchdog"
 194         depends on WATCHDOG && CPU_AT32AP7000
 195         help
 196           Watchdog timer embedded into AT32AP700x devices. This will reboot
 197           your system when the timeout is reached.
 198
 199 # X86 (i386 + ia64 + x86_64) Architecture
 200
 201 config ACQUIRE_WDT
 202         tristate "Acquire SBC Watchdog Timer"
 203         depends on X86
 204         ---help---
 205           This is the driver for the hardware watchdog on Single Board
 206           Computers produced by Acquire Inc (and others). This watchdog
 207           simply watches your kernel to make sure it doesn't freeze, and if
 208           it does, it reboots your computer after a certain amount of time.
 209
 210           To compile this driver as a module, choose M here: the
 211           module will be called acquirewdt.
 212
 213           Most people will say N.
 214
 215 config ADVANTECH_WDT
 216         tristate "Advantech SBC Watchdog Timer"
 217         depends on X86
 218         help
 219           If you are configuring a Linux kernel for the Advantech single-board
 220           computer, say `Y' here to support its built-in watchdog timer
 221           feature. More information can be found at
 222           <http://www.advantech.com.tw/products/>
 223
 224 config ALIM1535_WDT
 225         tristate "ALi M1535 PMU Watchdog Timer"
 226         depends on X86 && PCI
 227         ---help---
 228           This is the driver for the hardware watchdog on the ALi M1535 PMU.
 229
 230           To compile this driver as a module, choose M here: the
 231           module will be called alim1535_wdt.
 232
 233           Most people will say N.
 234
 235 config ALIM7101_WDT
 236         tristate "ALi M7101 PMU Computer Watchdog"
 237         depends on X86 && PCI
 238         help
 239           This is the driver for the hardware watchdog on the ALi M7101 PMU
 240           as used in the x86 Cobalt servers.
 241
 242           To compile this driver as a module, choose M here: the
 243           module will be called alim7101_wdt.
 244
 245           Most people will say N.
 246
 247 config SC520_WDT
 248         tristate "AMD Elan SC520 processor Watchdog"
 249         depends on X86
 250         help
 251           This is the driver for the hardware watchdog built in to the
 252           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
 253           This watchdog simply watches your kernel to make sure it doesn't
 254           freeze, and if it does, it reboots your computer after a certain
 255           amount of time.
 256
 257           You can compile this driver directly into the kernel, or use
 258           it as a module.  The module will be called sc520_wdt.
 259
 260 config EUROTECH_WDT
 261         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
 262         depends on X86
 263         help
 264           Enable support for the watchdog timer on the Eurotech CPU-1220 and
 265           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
 266           information are at <http://www.eurotech.it/>.
 267
 268 config IB700_WDT
 269         tristate "IB700 SBC Watchdog Timer"
 270         depends on X86
 271         ---help---
 272           This is the driver for the hardware watchdog on the IB700 Single
 273           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
 274           simply watches your kernel to make sure it doesn't freeze, and if
 275           it does, it reboots your computer after a certain amount of time.
 276
 277           This driver is like the WDT501 driver but for slightly different hardware.
 278
 279           To compile this driver as a module, choose M here: the
 280           module will be called ib700wdt.
 281
 282           Most people will say N.
 283
 284 config IBMASR
 285         tristate "IBM Automatic Server Restart"
 286         depends on X86
 287         help
 288           This is the driver for the IBM Automatic Server Restart watchdog
 289           timer built-in into some eServer xSeries machines.
 290
 291           To compile this driver as a module, choose M here: the
 292           module will be called ibmasr.
 293
 294 config WAFER_WDT
 295         tristate "ICP Wafer 5823 Single Board Computer Watchdog"
 296         depends on X86
 297         help
 298           This is a driver for the hardware watchdog on the ICP Wafer 5823
 299           Single Board Computer (and probably other similar models).
 300
 301           To compile this driver as a module, choose M here: the
 302           module will be called wafer5823wdt.
 303
 304 config I6300ESB_WDT
 305         tristate "Intel 6300ESB Timer/Watchdog"
 306         depends on X86 && PCI
 307         ---help---
 308           Hardware driver for the watchdog timer built into the Intel
 309           6300ESB controller hub.
 310
 311           To compile this driver as a module, choose M here: the
 312           module will be called i6300esb.
 313
 314 config ITCO_WDT
 315         tristate "Intel TCO Timer/Watchdog"
 316         depends on (X86 || IA64) && PCI
 317         ---help---
 318           Hardware driver for the intel TCO timer based watchdog devices.
 319           These drivers are included in the Intel 82801 I/O Controller
 320           Hub family (from ICH0 up to ICH8) and in the Intel 6300ESB
 321           controller hub.
 322
 323           The TCO (Total Cost of Ownership) timer is a watchdog timer
 324           that will reboot the machine after its second expiration. The
 325           expiration time can be configured with the "heartbeat" parameter.
 326
 327           On some motherboards the driver may fail to reset the chipset's
 328           NO_REBOOT flag which prevents the watchdog from rebooting the
 329           machine. If this is the case you will get a kernel message like
 330           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
 331
 332           To compile this driver as a module, choose M here: the
 333           module will be called iTCO_wdt.
 334
 335 config ITCO_VENDOR_SUPPORT
 336         bool "Intel TCO Timer/Watchdog Specific Vendor Support"
 337         depends on ITCO_WDT
 338         ---help---
 339           Add vendor specific support to the intel TCO timer based watchdog
 340           devices. At this moment we only have additional support for some
 341           SuperMicro Inc. motherboards.
 342
 343 config SC1200_WDT
 344         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 345         depends on X86
 346         help
 347           This is a driver for National Semiconductor PC87307/PC97307 hardware
 348           watchdog cards as found on the SC1200. This watchdog is mainly used
 349           for power management purposes and can be used to power down the device
 350           during inactivity periods (includes interrupt activity monitoring).
 351
 352           To compile this driver as a module, choose M here: the
 353           module will be called sc1200wdt.
 354
 355           Most people will say N.
 356
 357 config SCx200_WDT
 358         tristate "National Semiconductor SCx200 Watchdog"
 359         depends on SCx200 && PCI
 360         help
 361           Enable the built-in watchdog timer support on the National
 362           Semiconductor SCx200 processors.
 363
 364           If compiled as a module, it will be called scx200_wdt.
 365
 366 config PC87413_WDT
 367         tristate "NS PC87413 watchdog"
 368         depends on X86
 369         ---help---
 370           This is the driver for the hardware watchdog on the PC87413 chipset
 371           This watchdog simply watches your kernel to make sure it doesn't
 372           freeze, and if it does, it reboots your computer after a certain
 373           amount of time.
 374
 375           To compile this driver as a module, choose M here: the
 376           module will be called pc87413_wdt.
 377
 378           Most people will say N.
 379
 380 config 60XX_WDT
 381         tristate "SBC-60XX Watchdog Timer"
 382         depends on X86
 383         help
 384           This driver can be used with the watchdog timer found on some
 385           single board computers, namely the 6010 PII based computer.
 386           It may well work with other cards.  It reads port 0x443 to enable
 387           and re-set the watchdog timer, and reads port 0x45 to disable
 388           the watchdog.  If you have a card that behave in similar ways,
 389           you can probably make this driver work with your card as well.
 390
 391           You can compile this driver directly into the kernel, or use
 392           it as a module.  The module will be called sbc60xxwdt.
 393
 394 config SBC8360_WDT
 395         tristate "SBC8360 Watchdog Timer"
 396         depends on X86
 397         ---help---
 398
 399           This is the driver for the hardware watchdog on the SBC8360 Single
 400           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 401
 402           To compile this driver as a module, choose M here: the
 403           module will be called sbc8360.ko.
 404
 405           Most people will say N.
 406
 407 config CPU5_WDT
 408         tristate "SMA CPU5 Watchdog"
 409         depends on X86
 410         ---help---
 411           TBD.
 412           To compile this driver as a module, choose M here: the
 413           module will be called cpu5wdt.
 414
 415 config SMSC37B787_WDT
 416         tristate "Winbond SMsC37B787 Watchdog Timer"
 417         depends on X86
 418         ---help---
 419           This is the driver for the hardware watchdog component on the
 420           Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
 421           from Vision Systems and maybe others.
 422
 423           This watchdog simply watches your kernel to make sure it doesn't
 424           freeze, and if it does, it reboots your computer after a certain
 425           amount of time.
 426
 427           Usually a userspace daemon will notify the kernel WDT driver that
 428           userspace is still alive, at regular intervals.
 429
 430           To compile this driver as a module, choose M here: the
 431           module will be called smsc37b787_wdt.
 432
 433           Most people will say N.
 434
 435 config W83627HF_WDT
 436         tristate "W83627HF Watchdog Timer"
 437         depends on X86
 438         ---help---
 439           This is the driver for the hardware watchdog on the W83627HF chipset
 440           as used in Advantech PC-9578 and Tyan S2721-533 motherboards
 441           (and likely others).  This watchdog simply watches your kernel to
 442           make sure it doesn't freeze, and if it does, it reboots your computer
 443           after a certain amount of time.
 444
 445           To compile this driver as a module, choose M here: the
 446           module will be called w83627hf_wdt.
 447
 448           Most people will say N.
 449
 450 config W83697HF_WDT
 451         tristate "W83697HF/W83697HG Watchdog Timer"
 452         depends on X86
 453         ---help---
 454           This is the driver for the hardware watchdog on the W83697HF/HG
 455           chipset as used in Dedibox/VIA motherboards (and likely others).
 456           This watchdog simply watches your kernel to make sure it doesn't
 457           freeze, and if it does, it reboots your computer after a certain
 458           amount of time.
 459
 460           To compile this driver as a module, choose M here: the
 461           module will be called w83697hf_wdt.
 462
 463           Most people will say N.
 464
 465 config W83877F_WDT
 466         tristate "W83877F (EMACS) Watchdog Timer"
 467         depends on X86
 468         ---help---
 469           This is the driver for the hardware watchdog on the W83877F chipset
 470           as used in EMACS PC-104 motherboards (and likely others).  This
 471           watchdog simply watches your kernel to make sure it doesn't freeze,
 472           and if it does, it reboots your computer after a certain amount of
 473           time.
 474
 475           To compile this driver as a module, choose M here: the
 476           module will be called w83877f_wdt.
 477
 478           Most people will say N.
 479
 480 config W83977F_WDT
 481         tristate "W83977F (PCM-5335) Watchdog Timer"
 482         depends on X86
 483         ---help---
 484           This is the driver for the hardware watchdog on the W83977F I/O chip
 485           as used in AAEON's PCM-5335 SBC (and likely others).  This
 486           watchdog simply watches your kernel to make sure it doesn't freeze,
 487           and if it does, it reboots your computer after a certain amount of
 488           time.
 489
 490           To compile this driver as a module, choose M here: the
 491           module will be called w83977f_wdt.
 492
 493 config MACHZ_WDT
 494         tristate "ZF MachZ Watchdog"
 495         depends on X86
 496         ---help---
 497           If you are using a ZF Micro MachZ processor, say Y here, otherwise
 498           N.  This is the driver for the watchdog timer built-in on that
 499           processor using ZF-Logic interface.  This watchdog simply watches
 500           your kernel to make sure it doesn't freeze, and if it does, it
 501           reboots your computer after a certain amount of time.
 502
 503           To compile this driver as a module, choose M here: the
 504           module will be called machzwd.
 505
 506 config SBC_EPX_C3_WATCHDOG
 507         tristate "Winsystems SBC EPX-C3 watchdog"
 508         depends on X86
 509         ---help---
 510           This is the driver for the built-in watchdog timer on the EPX-C3
 511           Single-board computer made by Winsystems, Inc.
 512
 513           *Note*: This hardware watchdog is not probeable and thus there
 514           is no way to know if writing to its IO address will corrupt
 515           your system or have any real effect.  The only way to be sure
 516           that this driver does what you want is to make sure you
 517           are running it on an EPX-C3 from Winsystems with the watchdog
 518           timer at IO address 0x1ee and 0x1ef.  It will write to both those
 519           IO ports.  Basically, the assumption is made that if you compile
 520           this driver into your kernel and/or load it as a module, that you
 521           know what you are doing and that you are in fact running on an
 522           EPX-C3 board!
 523
 524           To compile this driver as a module, choose M here: the
 525           module will be called sbc_epx_c3.
 526
 527 # PowerPC Architecture
 528
 529 config 8xx_WDT
 530         tristate "MPC8xx Watchdog Timer"
 531         depends on 8xx
 532
 533 config 83xx_WDT
 534         tristate "MPC83xx Watchdog Timer"
 535         depends on PPC_83xx
 536
 537 config MV64X60_WDT
 538         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
 539         depends on MV64X60
 540
 541 config BOOKE_WDT
 542         bool "PowerPC Book-E Watchdog Timer"
 543         depends on BOOKE || 4xx
 544         ---help---
 545           Please see Documentation/watchdog/watchdog-api.txt for
 546           more information.
 547
 548 # PPC64 Architecture
 549
 550 config WATCHDOG_RTAS
 551         tristate "RTAS watchdog"
 552         depends on PPC_RTAS
 553         help
 554           This driver adds watchdog support for the RTAS watchdog.
 555
 556           To compile this driver as a module, choose M here. The module
 557           will be called wdrtas.
 558
 559 # MIPS Architecture
 560
 561 config INDYDOG
 562         tristate "Indy/I2 Hardware Watchdog"
 563         depends on SGI_IP22
 564         help
 565           Hardware driver for the Indy's/I2's watchdog. This is a
 566           watchdog timer that will reboot the machine after a 60 second
 567           timer expired and no process has written to /dev/watchdog during
 568           that time.
 569
 570 config WDT_MTX1
 571         tristate "MTX-1 Hardware Watchdog"
 572         depends on MIPS_MTX1
 573         help
 574           Hardware driver for the MTX-1 boards. This is a watchdog timer that
 575           will reboot the machine after a 100 seconds timer expired.
 576
 577 config WDT_RM9K_GPI
 578         tristate "RM9000/GPI hardware watchdog"
 579         depends on CPU_RM9000
 580         help
 581           Watchdog implementation using the GPI hardware found on
 582           PMC-Sierra RM9xxx CPUs.
 583
 584           To compile this driver as a module, choose M here: the
 585           module will be called rm9k_wdt.
 586
 587 # S390 Architecture
 588
 589 config ZVM_WATCHDOG
 590         tristate "z/VM Watchdog Timer"
 591         depends on S390
 592         help
 593           IBM s/390 and zSeries machines running under z/VM 5.1 or later
 594           provide a virtual watchdog timer to their guest that cause a
 595           user define Control Program command to be executed after a
 596           timeout.
 597
 598           To compile this driver as a module, choose M here. The module
 599           will be called vmwatchdog.
 600
 601 # SUPERH Architecture
 602
 603 config SH_WDT
 604         tristate "SuperH Watchdog"
 605         depends on SUPERH && (CPU_SH3 || CPU_SH4)
 606         help
 607           This driver adds watchdog support for the integrated watchdog in the
 608           SuperH processors. If you have one of these processors and wish
 609           to have watchdog support enabled, say Y, otherwise say N.
 610
 611           As a side note, saying Y here will automatically boost HZ to 1000
 612           so that the timer has a chance to clear the overflow counter. On
 613           slower systems (such as the SH-2 and SH-3) this will likely yield
 614           some performance issues. As such, the WDT should be avoided here
 615           unless it is absolutely necessary.
 616
 617           To compile this driver as a module, choose M here: the
 618           module will be called shwdt.
 619
 620 config SH_WDT_MMAP
 621         bool "Allow mmap of SH WDT"
 622         default n
 623         depends on SH_WDT
 624         help
 625           If you say Y here, user applications will be able to mmap the
 626           WDT/CPG registers.
 627
 628 # SPARC64 Architecture
 629
 630 config WATCHDOG_CP1XXX
 631         tristate "CP1XXX Hardware Watchdog support"
 632         depends on SPARC64 && PCI
 633         ---help---
 634           This is the driver for the hardware watchdog timers present on
 635           Sun Microsystems CompactPCI models CP1400 and CP1500.
 636
 637           To compile this driver as a module, choose M here: the
 638           module will be called cpwatchdog.
 639
 640           If you do not have a CompactPCI model CP1400 or CP1500, or
 641           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
 642           you should say N to this option.
 643
 644 config WATCHDOG_RIO
 645         tristate "RIO Hardware Watchdog support"
 646         depends on SPARC64 && PCI
 647         help
 648           Say Y here to support the hardware watchdog capability on Sun RIO
 649           machines.  The watchdog timeout period is normally one minute but
 650           can be changed with a boot-time parameter.
 651
 652 #
 653 # ISA-based Watchdog Cards
 654 #
 655
 656 comment "ISA-based Watchdog Cards"
 657         depends on ISA
 658
 659 config PCWATCHDOG
 660         tristate "Berkshire Products ISA-PC Watchdog"
 661         depends on ISA
 662         ---help---
 663           This is the driver for the Berkshire Products ISA-PC Watchdog card.
 664           This card simply watches your kernel to make sure it doesn't freeze,
 665           and if it does, it reboots your computer after a certain amount of
 666           time. This driver is like the WDT501 driver but for different
 667           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
 668           watchdog cards can be ordered from <http://www.berkprod.com/>.
 669
 670           To compile this driver as a module, choose M here: the
 671           module will be called pcwd.
 672
 673           Most people will say N.
 674
 675 config MIXCOMWD
 676         tristate "Mixcom Watchdog"
 677         depends on ISA
 678         ---help---
 679           This is a driver for the Mixcom hardware watchdog cards.  This
 680           watchdog simply watches your kernel to make sure it doesn't freeze,
 681           and if it does, it reboots your computer after a certain amount of
 682           time.
 683
 684           To compile this driver as a module, choose M here: the
 685           module will be called mixcomwd.
 686
 687           Most people will say N.
 688
 689 config WDT
 690         tristate "WDT Watchdog timer"
 691         depends on ISA
 692         ---help---
 693           If you have a WDT500P or WDT501P watchdog board, say Y here,
 694           otherwise N. It is not possible to probe for this board, which means
 695           that you have to inform the kernel about the IO port and IRQ that
 696           is needed (you can do this via the io and irq parameters)
 697
 698           To compile this driver as a module, choose M here: the
 699           module will be called wdt.
 700
 701 config WDT_501
 702         bool "WDT501 features"
 703         depends on WDT
 704         help
 705           Saying Y here and creating a character special file /dev/temperature
 706           with major number 10 and minor number 131 ("man mknod") will give
 707           you a thermometer inside your computer: reading from
 708           /dev/temperature yields one byte, the temperature in degrees
 709           Fahrenheit. This works only if you have a WDT501P watchdog board
 710           installed.
 711
 712           If you want to enable the Fan Tachometer on the WDT501P, then you
 713           can do this via the tachometer parameter. Only do this if you have a
 714           fan tachometer actually set up.
 715
 716 #
 717 # PCI-based Watchdog Cards
 718 #
 719
 720 comment "PCI-based Watchdog Cards"
 721         depends on PCI
 722
 723 config PCIPCWATCHDOG
 724         tristate "Berkshire Products PCI-PC Watchdog"
 725         depends on PCI
 726         ---help---
 727           This is the driver for the Berkshire Products PCI-PC Watchdog card.
 728           This card simply watches your kernel to make sure it doesn't freeze,
 729           and if it does, it reboots your computer after a certain amount of
 730           time. The card can also monitor the internal temperature of the PC.
 731           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
 732
 733           To compile this driver as a module, choose M here: the
 734           module will be called pcwd_pci.
 735
 736           Most people will say N.
 737
 738 config WDTPCI
 739         tristate "PCI-WDT500/501 Watchdog timer"
 740         depends on PCI
 741         ---help---
 742           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
 743
 744           To compile this driver as a module, choose M here: the
 745           module will be called wdt_pci.
 746
 747 config WDT_501_PCI
 748         bool "PCI-WDT501 features"
 749         depends on WDTPCI
 750         help
 751           Saying Y here and creating a character special file /dev/temperature
 752           with major number 10 and minor number 131 ("man mknod") will give
 753           you a thermometer inside your computer: reading from
 754           /dev/temperature yields one byte, the temperature in degrees
 755           Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
 756           installed.
 757
 758           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
 759           can do this via the tachometer parameter. Only do this if you have a
 760           fan tachometer actually set up.
 761
 762 #
 763 # USB-based Watchdog Cards
 764 #
 765
 766 comment "USB-based Watchdog Cards"
 767         depends on USB
 768
 769 config USBPCWATCHDOG
 770         tristate "Berkshire Products USB-PC Watchdog"
 771         depends on USB
 772         ---help---
 773           This is the driver for the Berkshire Products USB-PC Watchdog card.
 774           This card simply watches your kernel to make sure it doesn't freeze,
 775           and if it does, it reboots your computer after a certain amount of
 776           time. The card can also monitor the internal temperature of the PC.
 777           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
 778
 779           To compile this driver as a module, choose M here: the
 780           module will be called pcwd_usb.
 781
 782           Most people will say N.
 783
 784 endif # WATCHDOG