drivers/gpio/Kconfig

   1 #
   2 # GPIO infrastructure and drivers
   3 #
   4
   5 config ARCH_HAVE_CUSTOM_GPIO_H
   6         bool
   7         help
   8           Selecting this config option from the architecture Kconfig allows
   9           the architecture to provide a custom asm/gpio.h implementation
  10           overriding the default implementations.  New uses of this are
  11           strongly discouraged.
  12
  13 menuconfig GPIOLIB
  14         bool "GPIO Support"
  15         select ANON_INODES
  16         help
  17           This enables GPIO support through the generic GPIO library.
  18           You only need to enable this, if you also want to enable
  19           one or more of the GPIO drivers below.
  20
  21           If unsure, say N.
  22
  23 if GPIOLIB
  24
  25 config OF_GPIO
  26         def_bool y
  27         depends on OF
  28         depends on HAS_IOMEM
  29
  30 config GPIO_ACPI
  31         def_bool y
  32         depends on ACPI
  33
  34 config GPIOLIB_IRQCHIP
  35         select IRQ_DOMAIN
  36         bool
  37
  38 config DEBUG_GPIO
  39         bool "Debug GPIO calls"
  40         depends on DEBUG_KERNEL
  41         help
  42           Say Y here to add some extra checks and diagnostics to GPIO calls.
  43           These checks help ensure that GPIOs have been properly initialized
  44           before they are used, and that sleeping calls are not made from
  45           non-sleeping contexts.  They can make bitbanged serial protocols
  46           slower.  The diagnostics help catch the type of setup errors
  47           that are most common when setting up new platforms or boards.
  48
  49 config GPIO_SYSFS
  50         bool "/sys/class/gpio/... (sysfs interface)"
  51         depends on SYSFS
  52         help
  53           Say Y here to add a sysfs interface for GPIOs.
  54
  55           This is mostly useful to work around omissions in a system's
  56           kernel support.  Those are common in custom and semicustom
  57           hardware assembled using standard kernels with a minimum of
  58           custom patches.  In those cases, userspace code may import
  59           a given GPIO from the kernel, if no kernel driver requested it.
  60
  61           Kernel drivers may also request that a particular GPIO be
  62           exported to userspace; this can be useful when debugging.
  63
  64 config GPIO_GENERIC
  65         depends on HAS_IOMEM # Only for IOMEM drivers
  66         tristate
  67
  68 # put drivers in the right section, in alphabetical order
  69
  70 # This symbol is selected by both I2C and SPI expanders
  71 config GPIO_MAX730X
  72         tristate
  73
  74 menu "Memory mapped GPIO drivers"
  75         depends on HAS_IOMEM
  76
  77 config GPIO_74XX_MMIO
  78         tristate "GPIO driver for 74xx-ICs with MMIO access"
  79         depends on OF_GPIO
  80         select GPIO_GENERIC
  81         help
  82           Say yes here to support GPIO functionality for 74xx-compatible ICs
  83           with MMIO access. Compatible models include:
  84             1 bit:      741G125 (Input), 741G74 (Output)
  85             2 bits:     742G125 (Input), 7474 (Output)
  86             4 bits:     74125 (Input), 74175 (Output)
  87             6 bits:     74365 (Input), 74174 (Output)
  88             8 bits:     74244 (Input), 74273 (Output)
  89             16 bits:    741624 (Input), 7416374 (Output)
  90
  91 config GPIO_ALTERA
  92         tristate "Altera GPIO"
  93         depends on OF_GPIO
  94         select GPIOLIB_IRQCHIP
  95         help
  96           Say Y or M here to build support for the Altera PIO device.
  97
  98           If driver is built as a module it will be called gpio-altera.
  99
 100 config GPIO_AMDPT
 101         tristate "AMD Promontory GPIO support"
 102         depends on ACPI
 103         select GPIO_GENERIC
 104         help
 105           driver for GPIO functionality on Promontory IOHub
 106           Require ACPI ASL code to enumerate as a platform device.
 107
 108 config GPIO_ASPEED
 109         tristate "Aspeed GPIO support"
 110         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 111         select GPIOLIB_IRQCHIP
 112         help
 113           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 114
 115 config GPIO_ATH79
 116         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 117         default y if ATH79
 118         depends on ATH79 || COMPILE_TEST
 119         select GPIO_GENERIC
 120         select GPIOLIB_IRQCHIP
 121         help
 122           Select this option to enable GPIO driver for
 123           Atheros AR71XX/AR724X/AR913X SoC devices.
 124
 125 config GPIO_AXP209
 126         tristate "X-Powers AXP209 PMIC GPIO Support"
 127         depends on MFD_AXP20X
 128         help
 129           Say yes to enable GPIO support for the AXP209 PMIC
 130
 131 config GPIO_BCM_KONA
 132         bool "Broadcom Kona GPIO"
 133         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 134         help
 135           Turn on GPIO support for Broadcom "Kona" chips.
 136
 137 config GPIO_BRCMSTB
 138         tristate "BRCMSTB GPIO support"
 139         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 140         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 141         select GPIO_GENERIC
 142         select GPIOLIB_IRQCHIP
 143         help
 144           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 145
 146 config GPIO_CLPS711X
 147         tristate "CLPS711X GPIO support"
 148         depends on ARCH_CLPS711X || COMPILE_TEST
 149         select GPIO_GENERIC
 150         help
 151           Say yes here to support GPIO on CLPS711X SoCs.
 152
 153 config GPIO_DAVINCI
 154         bool "TI Davinci/Keystone GPIO support"
 155         default y if ARCH_DAVINCI
 156         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 157         help
 158           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 159
 160 config GPIO_DWAPB
 161         tristate "Synopsys DesignWare APB GPIO driver"
 162         select GPIO_GENERIC
 163         select GENERIC_IRQ_CHIP
 164         help
 165           Say Y or M here to build support for the Synopsys DesignWare APB
 166           GPIO block.
 167
 168 config GPIO_EM
 169         tristate "Emma Mobile GPIO"
 170         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 171         help
 172           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 173
 174 config GPIO_EP93XX
 175         def_bool y
 176         depends on ARCH_EP93XX
 177         select GPIO_GENERIC
 178
 179 config GPIO_ETRAXFS
 180         bool "Axis ETRAX FS General I/O"
 181         depends on CRIS || COMPILE_TEST
 182         depends on OF_GPIO
 183         select GPIO_GENERIC
 184         select GPIOLIB_IRQCHIP
 185         help
 186           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 187
 188 config GPIO_EXAR
 189         tristate "Support for GPIO pins on XR17V352/354/358"
 190         depends on SERIAL_8250_EXAR
 191         help
 192           Selecting this option will enable handling of GPIO pins present
 193           on Exar XR17V352/354/358 chips.
 194
 195 config GPIO_GE_FPGA
 196         bool "GE FPGA based GPIO"
 197         depends on GE_FPGA
 198         select GPIO_GENERIC
 199         help
 200           Support for common GPIO functionality provided on some GE Single Board
 201           Computers.
 202
 203           This driver provides basic support (configure as input or output, read
 204           and write pin state) for GPIO implemented in a number of GE single
 205           board computers.
 206
 207 config GPIO_FTGPIO010
 208         bool "Faraday FTGPIO010 GPIO"
 209         depends on OF_GPIO
 210         select GPIO_GENERIC
 211         select GPIOLIB_IRQCHIP
 212         default (ARCH_GEMINI || ARCH_MOXART)
 213         help
 214           Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 215           Cortina systems Gemini platforms, Moxa ART and others.
 216
 217 config GPIO_GENERIC_PLATFORM
 218         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 219         select GPIO_GENERIC
 220         help
 221           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 222
 223 config GPIO_GRGPIO
 224         tristate "Aeroflex Gaisler GRGPIO support"
 225         depends on OF_GPIO
 226         select GPIO_GENERIC
 227         select IRQ_DOMAIN
 228         help
 229           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 230           VHDL IP core library.
 231
 232 config GPIO_ICH
 233         tristate "Intel ICH GPIO"
 234         depends on PCI && X86
 235         select MFD_CORE
 236         select LPC_ICH
 237         help
 238           Say yes here to support the GPIO functionality of a number of Intel
 239           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 240           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 241           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 242
 243           If unsure, say N.
 244
 245 config GPIO_IOP
 246         tristate "Intel IOP GPIO"
 247         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
 248         select GPIO_GENERIC
 249         help
 250           Say yes here to support the GPIO functionality of a number of Intel
 251           IOP32X or IOP33X.
 252
 253           If unsure, say N.
 254
 255 config GPIO_LOONGSON
 256         bool "Loongson-2/3 GPIO support"
 257         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 258         help
 259           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 260
 261 config GPIO_LPC18XX
 262         tristate "NXP LPC18XX/43XX GPIO support"
 263         default y if ARCH_LPC18XX
 264         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 265         help
 266           Select this option to enable GPIO driver for
 267           NXP LPC18XX/43XX devices.
 268
 269 config GPIO_LYNXPOINT
 270         tristate "Intel Lynxpoint GPIO support"
 271         depends on ACPI && X86
 272         select GPIOLIB_IRQCHIP
 273         help
 274           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 275           Requires ACPI device enumeration code to set up a platform device.
 276
 277 config GPIO_MB86S7X
 278         bool "GPIO support for Fujitsu MB86S7x Platforms"
 279         depends on ARCH_MB86S7X || COMPILE_TEST
 280         help
 281           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 282
 283 config GPIO_MENZ127
 284         tristate "MEN 16Z127 GPIO support"
 285         depends on MCB
 286         select GPIO_GENERIC
 287         help
 288          Say yes here to support the MEN 16Z127 GPIO Controller
 289
 290 config GPIO_MM_LANTIQ
 291         bool "Lantiq Memory mapped GPIOs"
 292         depends on LANTIQ && SOC_XWAY
 293         help
 294           This enables support for memory mapped GPIOs on the External Bus Unit
 295           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 296           created by attaching a 16bit latch to the bus.
 297
 298 config GPIO_MOCKUP
 299         tristate "GPIO Testing Driver"
 300         depends on GPIOLIB && SYSFS
 301         select GPIO_SYSFS
 302         select GPIOLIB_IRQCHIP
 303         select IRQ_WORK
 304         help
 305           This enables GPIO Testing driver, which provides a way to test GPIO
 306           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
 307           must be selected for this test.
 308           User could use it through the script in
 309           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
 310           it.
 311
 312 config GPIO_MPC5200
 313         def_bool y
 314         depends on PPC_MPC52xx
 315
 316 config GPIO_MPC8XXX
 317         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 318         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 319                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 320                    COMPILE_TEST
 321         select GPIO_GENERIC
 322         select IRQ_DOMAIN
 323         help
 324           Say Y here if you're going to use hardware that connects to the
 325           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 326
 327 config GPIO_MVEBU
 328         def_bool y
 329         depends on PLAT_ORION || ARCH_MVEBU
 330         depends on OF_GPIO
 331         select GENERIC_IRQ_CHIP
 332
 333 config GPIO_MXC
 334         def_bool y
 335         depends on ARCH_MXC
 336         select GPIO_GENERIC
 337         select GENERIC_IRQ_CHIP
 338
 339 config GPIO_MXS
 340         def_bool y
 341         depends on ARCH_MXS
 342         select GPIO_GENERIC
 343         select GENERIC_IRQ_CHIP
 344
 345 config GPIO_OCTEON
 346         tristate "Cavium OCTEON GPIO"
 347         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 348         default y
 349         help
 350           Say yes here to support the on-chip GPIO lines on the OCTEON
 351           family of SOCs.
 352
 353 config GPIO_OMAP
 354         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 355         default y if ARCH_OMAP
 356         depends on ARM
 357         select GENERIC_IRQ_CHIP
 358         select GPIOLIB_IRQCHIP
 359         help
 360           Say yes here to enable GPIO support for TI OMAP SoCs.
 361
 362 config GPIO_PL061
 363         bool "PrimeCell PL061 GPIO support"
 364         depends on ARM_AMBA
 365         select IRQ_DOMAIN
 366         select GPIOLIB_IRQCHIP
 367         help
 368           Say yes here to support the PrimeCell PL061 GPIO device
 369
 370 config GPIO_PXA
 371         bool "PXA GPIO support"
 372         depends on ARCH_PXA || ARCH_MMP
 373         help
 374           Say yes here to support the PXA GPIO device
 375
 376 config GPIO_RCAR
 377         tristate "Renesas R-Car GPIO"
 378         depends on ARCH_RENESAS || COMPILE_TEST
 379         select GPIOLIB_IRQCHIP
 380         help
 381           Say yes here to support GPIO on Renesas R-Car SoCs.
 382
 383 config GPIO_REG
 384         bool
 385         help
 386           A 32-bit single register GPIO fixed in/out implementation.  This
 387           can be used to represent any register as a set of GPIO signals.
 388
 389 config GPIO_SPEAR_SPICS
 390         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 391         depends on PLAT_SPEAR
 392         select GENERIC_IRQ_CHIP
 393         help
 394           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 395
 396 config GPIO_STA2X11
 397         bool "STA2x11/ConneXt GPIO support"
 398         depends on MFD_STA2X11
 399         select GENERIC_IRQ_CHIP
 400         help
 401           Say yes here to support the STA2x11/ConneXt GPIO device.
 402           The GPIO module has 128 GPIO pins with alternate functions.
 403
 404 config GPIO_STP_XWAY
 405         bool "XWAY STP GPIOs"
 406         depends on SOC_XWAY
 407         help
 408           This enables support for the Serial To Parallel (STP) unit found on
 409           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 410           that can be up to 24 bit. This peripheral is aimed at driving leds.
 411           Some of the gpios/leds can be auto updated by the soc with dsl and
 412           phy status.
 413
 414 config GPIO_SYSCON
 415         tristate "GPIO based on SYSCON"
 416         depends on MFD_SYSCON && OF
 417         help
 418           Say yes here to support GPIO functionality though SYSCON driver.
 419
 420 config GPIO_TB10X
 421         bool
 422         select GENERIC_IRQ_CHIP
 423         select OF_GPIO
 424
 425 config GPIO_TEGRA
 426         bool "NVIDIA Tegra GPIO support"
 427         default ARCH_TEGRA
 428         depends on ARCH_TEGRA || COMPILE_TEST
 429         depends on OF_GPIO
 430         help
 431           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 432
 433 config GPIO_TS4800
 434         tristate "TS-4800 DIO blocks and compatibles"
 435         depends on OF_GPIO
 436         depends on SOC_IMX51 || COMPILE_TEST
 437         select GPIO_GENERIC
 438         help
 439           This driver support TS-4800 FPGA GPIO controllers.
 440
 441 config GPIO_TZ1090
 442         bool "Toumaz Xenif TZ1090 GPIO support"
 443         depends on SOC_TZ1090
 444         select GENERIC_IRQ_CHIP
 445         default y
 446         help
 447           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 448
 449 config GPIO_TZ1090_PDC
 450         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 451         depends on SOC_TZ1090
 452         default y
 453         help
 454           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 455
 456 config GPIO_VF610
 457         def_bool y
 458         depends on ARCH_MXC && SOC_VF610
 459         select GPIOLIB_IRQCHIP
 460         help
 461           Say yes here to support Vybrid vf610 GPIOs.
 462
 463 config GPIO_VR41XX
 464         tristate "NEC VR4100 series General-purpose I/O Uint support"
 465         depends on CPU_VR41XX
 466         help
 467           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 468
 469 config GPIO_VX855
 470         tristate "VIA VX855/VX875 GPIO"
 471         depends on (X86 || COMPILE_TEST) && PCI
 472         select MFD_CORE
 473         select MFD_VX855
 474         help
 475           Support access to the VX855/VX875 GPIO lines through the gpio library.
 476
 477           This driver provides common support for accessing the device,
 478           additional drivers must be enabled in order to use the
 479           functionality of the device.
 480
 481 config GPIO_XGENE
 482         bool "APM X-Gene GPIO controller support"
 483         depends on ARM64 && OF_GPIO
 484         help
 485           This driver is to support the GPIO block within the APM X-Gene SoC
 486           platform's generic flash controller. The GPIO pins are muxed with
 487           the generic flash controller's address and data pins. Say yes
 488           here to enable the GFC GPIO functionality.
 489
 490 config GPIO_XGENE_SB
 491         tristate "APM X-Gene GPIO standby controller support"
 492         depends on ARCH_XGENE && OF_GPIO
 493         select GPIO_GENERIC
 494         select GPIOLIB_IRQCHIP
 495         help
 496           This driver supports the GPIO block within the APM X-Gene
 497           Standby Domain. Say yes here to enable the GPIO functionality.
 498
 499 config GPIO_XILINX
 500         tristate "Xilinx GPIO support"
 501         depends on OF_GPIO
 502         help
 503           Say yes here to support the Xilinx FPGA GPIO device
 504
 505 config GPIO_XLP
 506         tristate "Netlogic XLP GPIO support"
 507         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 508         select GPIOLIB_IRQCHIP
 509         help
 510           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 511           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 512           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 513           Cavium's ThunderX2 CN99XX SoCs.
 514
 515           If unsure, say N.
 516
 517 config GPIO_XTENSA
 518         bool "Xtensa GPIO32 support"
 519         depends on XTENSA
 520         depends on HAVE_XTENSA_GPIO32
 521         depends on !SMP
 522         help
 523           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 524           and EXPSTATE (output) ports
 525
 526 config GPIO_ZEVIO
 527         bool "LSI ZEVIO SoC memory mapped GPIOs"
 528         depends on ARM && OF_GPIO
 529         help
 530           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 531
 532 config GPIO_ZYNQ
 533         tristate "Xilinx Zynq GPIO support"
 534         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 535         select GPIOLIB_IRQCHIP
 536         help
 537           Say yes here to support Xilinx Zynq GPIO controller.
 538
 539 config GPIO_ZX
 540         bool "ZTE ZX GPIO support"
 541         depends on ARCH_ZX || COMPILE_TEST
 542         select GPIOLIB_IRQCHIP
 543         help
 544           Say yes here to support the GPIO device on ZTE ZX SoCs.
 545
 546 config GPIO_LOONGSON1
 547         tristate "Loongson1 GPIO support"
 548         depends on MACH_LOONGSON32
 549         select GPIO_GENERIC
 550         help
 551           Say Y or M here to support GPIO on Loongson1 SoCs.
 552
 553 endmenu
 554
 555 menu "Port-mapped I/O GPIO drivers"
 556         depends on X86 # Unconditional I/O space access
 557
 558 config GPIO_104_DIO_48E
 559         tristate "ACCES 104-DIO-48E GPIO support"
 560         depends on PC104 && ISA_BUS_API
 561         select GPIOLIB_IRQCHIP
 562         help
 563           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 564           104-DIO-24E). The base port addresses for the devices may be
 565           configured via the base module parameter. The interrupt line numbers
 566           for the devices may be configured via the irq module parameter.
 567
 568 config GPIO_104_IDIO_16
 569         tristate "ACCES 104-IDIO-16 GPIO support"
 570         depends on PC104 && ISA_BUS_API
 571         select GPIOLIB_IRQCHIP
 572         help
 573           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 574           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 575           base port addresses for the devices may be configured via the base
 576           module parameter. The interrupt line numbers for the devices may be
 577           configured via the irq module parameter.
 578
 579 config GPIO_104_IDI_48
 580         tristate "ACCES 104-IDI-48 GPIO support"
 581         depends on PC104 && ISA_BUS_API
 582         select GPIOLIB_IRQCHIP
 583         help
 584           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 585           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 586           the devices may be configured via the base module parameter. The
 587           interrupt line numbers for the devices may be configured via the irq
 588           module parameter.
 589
 590 config GPIO_F7188X
 591         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 592         help
 593           This option enables support for GPIOs found on Fintek Super-I/O
 594           chips F71869, F71869A, F71882FG, F71889F and F81866.
 595
 596           To compile this driver as a module, choose M here: the module will
 597           be called f7188x-gpio.
 598
 599 config GPIO_GPIO_MM
 600         tristate "Diamond Systems GPIO-MM GPIO support"
 601         depends on PC104 && ISA_BUS_API
 602         help
 603           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 604
 605           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 606           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 607           support for these 48 channels of digital I/O.
 608
 609           The base port addresses for the devices may be configured via the base
 610           array module parameter.
 611
 612 config GPIO_IT87
 613         tristate "IT87xx GPIO support"
 614         help
 615           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 616
 617           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 618           supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
 619
 620           To compile this driver as a module, choose M here: the module will
 621           be called gpio_it87
 622
 623 config GPIO_SCH
 624         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 625         depends on (X86 || COMPILE_TEST) && PCI
 626         select MFD_CORE
 627         select LPC_SCH
 628         help
 629           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 630           Intel Tunnel Creek processor, Intel Centerton processor or
 631           Intel Quark X1000 SoC.
 632
 633           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 634           powered by the core power rail and are turned off during sleep
 635           modes (S3 and higher). The remaining four GPIOs are powered by
 636           the Intel SCH suspend power supply. These GPIOs remain
 637           active during S3. The suspend powered GPIOs can be used to wake the
 638           system from the Suspend-to-RAM state.
 639
 640           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 641           core power rail and 9 from suspend power supply.
 642
 643           The Intel Centerton processor has a total of 30 GPIO pins.
 644           Twenty-one are powered by the core power rail and 9 from the
 645           suspend power supply.
 646
 647           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 648           power well and 6 from the suspend power well.
 649
 650 config GPIO_SCH311X
 651         tristate "SMSC SCH311x SuperI/O GPIO"
 652         help
 653           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 654           SCH3116 "Super I/O" chipsets.
 655
 656           To compile this driver as a module, choose M here: the module will
 657           be called gpio-sch311x.
 658
 659 config GPIO_TS5500
 660         tristate "TS-5500 DIO blocks and compatibles"
 661         depends on TS5500 || COMPILE_TEST
 662         help
 663           This driver supports Digital I/O exposed by pin blocks found on some
 664           Technologic Systems platforms. It includes, but is not limited to, 3
 665           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 666           LCD port.
 667
 668 config GPIO_WS16C48
 669         tristate "WinSystems WS16C48 GPIO support"
 670         depends on ISA_BUS_API
 671         select GPIOLIB_IRQCHIP
 672         help
 673           Enables GPIO support for the WinSystems WS16C48. The base port
 674           addresses for the devices may be configured via the base module
 675           parameter. The interrupt line numbers for the devices may be
 676           configured via the irq module parameter.
 677
 678 endmenu
 679
 680 menu "I2C GPIO expanders"
 681         depends on I2C
 682
 683 config GPIO_ADP5588
 684         tristate "ADP5588 I2C GPIO expander"
 685         help
 686           This option enables support for 18 GPIOs found
 687           on Analog Devices ADP5588 GPIO Expanders.
 688
 689 config GPIO_ADP5588_IRQ
 690         bool "Interrupt controller support for ADP5588"
 691         depends on GPIO_ADP5588=y
 692         help
 693           Say yes here to enable the adp5588 to be used as an interrupt
 694           controller. It requires the driver to be built in the kernel.
 695
 696 config GPIO_ADNP
 697         tristate "Avionic Design N-bit GPIO expander"
 698         depends on OF_GPIO
 699         select GPIOLIB_IRQCHIP
 700         help
 701           This option enables support for N GPIOs found on Avionic Design
 702           I2C GPIO expanders. The register space will be extended by powers
 703           of two, so the controller will need to accommodate for that. For
 704           example: if a controller provides 48 pins, 6 registers will be
 705           enough to represent all pins, but the driver will assume a
 706           register layout for 64 pins (8 registers).
 707
 708 config GPIO_MAX7300
 709         tristate "Maxim MAX7300 GPIO expander"
 710         select GPIO_MAX730X
 711         help
 712           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 713
 714 config GPIO_MAX732X
 715         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 716         help
 717           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 718           Port Expanders. Each IO port on these chips has a fixed role of
 719           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 720           Input and Output (designed by 'P'). The combinations are listed
 721           below:
 722
 723           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 724                         max7322 (4I4O), max7323 (4P4O)
 725
 726           16 bits:      max7324 (8I8O), max7325 (8P8O),
 727                         max7326 (4I12O), max7327 (4P12O)
 728
 729           Board setup code must specify the model to use, and the start
 730           number for these GPIOs.
 731
 732 config GPIO_MAX732X_IRQ
 733         bool "Interrupt controller support for MAX732x"
 734         depends on GPIO_MAX732X=y
 735         select GPIOLIB_IRQCHIP
 736         help
 737           Say yes here to enable the max732x to be used as an interrupt
 738           controller. It requires the driver to be built in the kernel.
 739
 740 config GPIO_MC9S08DZ60
 741         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 742         depends on I2C=y && MACH_MX35_3DS
 743         help
 744           Select this to enable the MC9S08DZ60 GPIO driver
 745
 746 config GPIO_PCA953X
 747         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 748         help
 749           Say yes here to provide access to several register-oriented
 750           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 751           models include:
 752
 753           4 bits:       pca9536, pca9537
 754
 755           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 756                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 757
 758           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 759                         tca6416
 760
 761           24 bits:      tca6424
 762
 763           40 bits:      pca9505, pca9698
 764
 765 config GPIO_PCA953X_IRQ
 766         bool "Interrupt controller support for PCA953x"
 767         depends on GPIO_PCA953X=y
 768         select GPIOLIB_IRQCHIP
 769         help
 770           Say yes here to enable the pca953x to be used as an interrupt
 771           controller. It requires the driver to be built in the kernel.
 772
 773 config GPIO_PCF857X
 774         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 775         select GPIOLIB_IRQCHIP
 776         select IRQ_DOMAIN
 777         help
 778           Say yes here to provide access to most "quasi-bidirectional" I2C
 779           GPIO expanders used for additional digital outputs or inputs.
 780           Most of these parts are from NXP, though TI is a second source for
 781           some of them.  Compatible models include:
 782
 783           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 784                     pca9670, pca9672, pca9674, pca9674a,
 785                     max7328, max7329
 786
 787           16 bits:  pcf8575, pcf8575c, pca8575,
 788                     pca9671, pca9673, pca9675
 789
 790           Your board setup code will need to declare the expanders in
 791           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 792           can then be used from drivers and other kernel code, just like
 793           other GPIOs, but only accessible from task contexts.
 794
 795           This driver provides an in-kernel interface to those GPIOs using
 796           platform-neutral GPIO calls.
 797
 798 config GPIO_SX150X
 799         bool "Semtech SX150x I2C GPIO expander (deprecated)"
 800         depends on PINCTRL && I2C=y
 801         select PINCTRL_SX150X
 802         default n
 803         help
 804           Say yes here to provide support for Semtech SX150x-series I2C
 805           GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
 806
 807 config GPIO_TPIC2810
 808         tristate "TPIC2810 8-Bit I2C GPO expander"
 809         help
 810           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 811
 812           To compile this driver as a module, choose M here: the module will
 813           be called gpio-tpic2810.
 814
 815 config GPIO_TS4900
 816         tristate "Technologic Systems FPGA I2C GPIO"
 817         depends on SOC_IMX6 || COMPILE_TEST
 818         select REGMAP_I2C
 819         help
 820           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 821           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 822
 823 endmenu
 824
 825 menu "MFD GPIO expanders"
 826
 827 config GPIO_ADP5520
 828         tristate "GPIO Support for ADP5520 PMIC"
 829         depends on PMIC_ADP5520
 830         help
 831           This option enables support for on-chip GPIO found
 832           on Analog Devices ADP5520 PMICs.
 833
 834 config GPIO_ALTERA_A10SR
 835         tristate "Altera Arria10 System Resource GPIO"
 836         depends on MFD_ALTERA_A10SR
 837         help
 838           Driver for Arria10 Development Kit GPIO expansion which
 839           includes reads of pushbuttons and DIP switches as well
 840           as writes to LEDs.
 841
 842 config GPIO_ARIZONA
 843         tristate "Wolfson Microelectronics Arizona class devices"
 844         depends on MFD_ARIZONA
 845         help
 846           Support for GPIOs on Wolfson Arizona class devices.
 847
 848 config GPIO_BD9571MWV
 849         tristate "ROHM BD9571 GPIO support"
 850         depends on MFD_BD9571MWV
 851         help
 852           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
 853           available on the ROHM PMIC in total, both of which can also
 854           generate interrupts.
 855
 856           This driver can also be built as a module. If so, the module
 857           will be called gpio-bd9571mwv.
 858
 859 config GPIO_CRYSTAL_COVE
 860         tristate "GPIO support for Crystal Cove PMIC"
 861         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
 862         select GPIOLIB_IRQCHIP
 863         help
 864           Support for GPIO pins on Crystal Cove PMIC.
 865
 866           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 867           inside.
 868
 869           This driver can also be built as a module. If so, the module will be
 870           called gpio-crystalcove.
 871
 872 config GPIO_CS5535
 873         tristate "AMD CS5535/CS5536 GPIO support"
 874         depends on X86 || MIPS || COMPILE_TEST
 875         depends on MFD_CS5535
 876         help
 877           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 878           can be used for quite a number of things.  The CS5535/6 is found on
 879           AMD Geode and Lemote Yeeloong devices.
 880
 881           If unsure, say N.
 882
 883 config GPIO_DA9052
 884         tristate "Dialog DA9052 GPIO"
 885         depends on PMIC_DA9052
 886         help
 887           Say yes here to enable the GPIO driver for the DA9052 chip.
 888
 889 config GPIO_DA9055
 890         tristate "Dialog Semiconductor DA9055 GPIO"
 891         depends on MFD_DA9055
 892         help
 893           Say yes here to enable the GPIO driver for the DA9055 chip.
 894
 895           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 896           be controller by this driver.
 897
 898           If driver is built as a module it will be called gpio-da9055.
 899
 900 config GPIO_DLN2
 901         tristate "Diolan DLN2 GPIO support"
 902         depends on MFD_DLN2
 903         select GPIOLIB_IRQCHIP
 904
 905         help
 906           Select this option to enable GPIO driver for the Diolan DLN2
 907           board.
 908
 909           This driver can also be built as a module. If so, the module
 910           will be called gpio-dln2.
 911
 912 config HTC_EGPIO
 913         bool "HTC EGPIO support"
 914         depends on GPIOLIB && ARM
 915         help
 916             This driver supports the CPLD egpio chip present on
 917             several HTC phones.  It provides basic support for input
 918             pins, output pins, and irqs.
 919
 920 config GPIO_JANZ_TTL
 921         tristate "Janz VMOD-TTL Digital IO Module"
 922         depends on MFD_JANZ_CMODIO
 923         help
 924           This enables support for the Janz VMOD-TTL Digital IO module.
 925           This driver provides support for driving the pins in output
 926           mode only. Input mode is not supported.
 927
 928 config GPIO_KEMPLD
 929         tristate "Kontron ETX / COMexpress GPIO"
 930         depends on MFD_KEMPLD
 931         help
 932           This enables support for the PLD GPIO interface on some Kontron ETX
 933           and COMexpress (ETXexpress) modules.
 934
 935           This driver can also be built as a module. If so, the module will be
 936           called gpio-kempld.
 937
 938 config GPIO_LP3943
 939         tristate "TI/National Semiconductor LP3943 GPIO expander"
 940         depends on MFD_LP3943
 941         help
 942           GPIO driver for LP3943 MFD.
 943           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 944           Open drain outputs are required for this usage.
 945
 946 config GPIO_LP873X
 947         tristate "TI LP873X GPO"
 948         depends on MFD_TI_LP873X
 949         help
 950           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
 951           on LP873X PMICs.
 952
 953           This driver can also be built as a module. If so, the module will be
 954           called gpio-lp873x.
 955
 956 config GPIO_MAX77620
 957         tristate "GPIO support for PMIC MAX77620 and MAX20024"
 958         depends on MFD_MAX77620
 959         help
 960           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
 961           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
 962           driver also provides interrupt support for each of the gpios.
 963           Say yes here to enable the max77620 to be used as gpio controller.
 964
 965 config GPIO_MSIC
 966         bool "Intel MSIC mixed signal gpio support"
 967         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
 968         help
 969           Enable support for GPIO on intel MSIC controllers found in
 970           intel MID devices
 971
 972 config GPIO_PALMAS
 973         bool "TI PALMAS series PMICs GPIO"
 974         depends on MFD_PALMAS
 975         help
 976           Select this option to enable GPIO driver for the TI PALMAS
 977           series chip family.
 978
 979 config GPIO_RC5T583
 980         bool "RICOH RC5T583 GPIO"
 981         depends on MFD_RC5T583
 982         help
 983           Select this option to enable GPIO driver for the Ricoh RC5T583
 984           chip family.
 985           This driver provides the support for driving/reading the gpio pins
 986           of RC5T583 device through standard gpio library.
 987
 988 config GPIO_STMPE
 989         bool "STMPE GPIOs"
 990         depends on MFD_STMPE
 991         depends on OF_GPIO
 992         select GPIOLIB_IRQCHIP
 993         help
 994           This enables support for the GPIOs found on the STMPE I/O
 995           Expanders.
 996
 997 config GPIO_TC3589X
 998         bool "TC3589X GPIOs"
 999         depends on MFD_TC3589X
1000         depends on OF_GPIO
1001         select GPIOLIB_IRQCHIP
1002         help
1003           This enables support for the GPIOs found on the TC3589X
1004           I/O Expander.
1005
1006 config GPIO_TIMBERDALE
1007         bool "Support for timberdale GPIO IP"
1008         depends on MFD_TIMBERDALE
1009         ---help---
1010         Add support for the GPIO IP in the timberdale FPGA.
1011
1012 config GPIO_TPS65086
1013         tristate "TI TPS65086 GPO"
1014         depends on MFD_TPS65086
1015         help
1016           This driver supports the GPO on TI TPS65086x PMICs.
1017
1018 config GPIO_TPS65218
1019         tristate "TPS65218 GPIO"
1020         depends on MFD_TPS65218
1021         help
1022           Select this option to enable GPIO driver for the TPS65218
1023           chip family.
1024
1025 config GPIO_TPS6586X
1026         bool "TPS6586X GPIO"
1027         depends on MFD_TPS6586X
1028         help
1029           Select this option to enable GPIO driver for the TPS6586X
1030           chip family.
1031
1032 config GPIO_TPS65910
1033         bool "TPS65910 GPIO"
1034         depends on MFD_TPS65910
1035         help
1036           Select this option to enable GPIO driver for the TPS65910
1037           chip family.
1038
1039 config GPIO_TPS65912
1040         tristate "TI TPS65912 GPIO"
1041         depends on MFD_TPS65912
1042         help
1043           This driver supports TPS65912 gpio chip
1044
1045 config GPIO_TWL4030
1046         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1047         depends on TWL4030_CORE
1048         help
1049           Say yes here to access the GPIO signals of various multi-function
1050           power management chips from Texas Instruments.
1051
1052 config GPIO_TWL6040
1053         tristate "TWL6040 GPO"
1054         depends on TWL6040_CORE
1055         help
1056           Say yes here to access the GPO signals of twl6040
1057           audio chip from Texas Instruments.
1058
1059 config GPIO_UCB1400
1060         tristate "Philips UCB1400 GPIO"
1061         depends on UCB1400_CORE
1062         help
1063           This enables support for the Philips UCB1400 GPIO pins.
1064           The UCB1400 is an AC97 audio codec.
1065
1066 config GPIO_WHISKEY_COVE
1067         tristate "GPIO support for Whiskey Cove PMIC"
1068         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1069         select GPIOLIB_IRQCHIP
1070         help
1071           Support for GPIO pins on Whiskey Cove PMIC.
1072
1073           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1074           inside.
1075
1076           This driver can also be built as a module. If so, the module will be
1077           called gpio-wcove.
1078
1079 config GPIO_WM831X
1080         tristate "WM831x GPIOs"
1081         depends on MFD_WM831X
1082         help
1083           Say yes here to access the GPIO signals of WM831x power management
1084           chips from Wolfson Microelectronics.
1085
1086 config GPIO_WM8350
1087         tristate "WM8350 GPIOs"
1088         depends on MFD_WM8350
1089         help
1090           Say yes here to access the GPIO signals of WM8350 power management
1091           chips from Wolfson Microelectronics.
1092
1093 config GPIO_WM8994
1094         tristate "WM8994 GPIOs"
1095         depends on MFD_WM8994
1096         help
1097           Say yes here to access the GPIO signals of WM8994 audio hub
1098           CODECs from Wolfson Microelectronics.
1099
1100 endmenu
1101
1102 menu "PCI GPIO expanders"
1103         depends on PCI
1104
1105 config GPIO_AMD8111
1106         tristate "AMD 8111 GPIO driver"
1107         depends on X86 || COMPILE_TEST
1108         help
1109           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1110
1111           Note, that usually system firmware/ACPI handles GPIO pins on their
1112           own and users might easily break their systems with uncarefull usage
1113           of this driver!
1114
1115           If unsure, say N
1116
1117 config GPIO_BT8XX
1118         tristate "BT8XX GPIO abuser"
1119         depends on VIDEO_BT848=n
1120         help
1121           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1122           as a cheap PCI GPIO card.
1123
1124           This chip can be found on Miro, Hauppauge and STB TV-cards.
1125
1126           The card needs to be physically altered for using it as a
1127           GPIO card. For more information on how to build a GPIO card
1128           from a BT8xx TV card, see the documentation file at
1129           Documentation/bt8xxgpio.txt
1130
1131           If unsure, say N.
1132
1133 config GPIO_INTEL_MID
1134         bool "Intel MID GPIO support"
1135         depends on X86_INTEL_MID
1136         select GPIOLIB_IRQCHIP
1137         help
1138           Say Y here to support Intel MID GPIO.
1139
1140 config GPIO_MERRIFIELD
1141         tristate "Intel Merrifield GPIO support"
1142         depends on X86_INTEL_MID
1143         select GPIOLIB_IRQCHIP
1144         help
1145           Say Y here to support Intel Merrifield GPIO.
1146
1147 config GPIO_ML_IOH
1148         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1149         depends on X86 || COMPILE_TEST
1150         select GENERIC_IRQ_CHIP
1151         help
1152           ML7213 is companion chip for Intel Atom E6xx series.
1153           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1154           Hub) which is for IVI(In-Vehicle Infotainment) use.
1155           This driver can access the IOH's GPIO device.
1156
1157 config GPIO_PCH
1158         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1159         depends on X86_32 || MIPS || COMPILE_TEST
1160         select GENERIC_IRQ_CHIP
1161         help
1162           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1163           which is an IOH(Input/Output Hub) for x86 embedded processor.
1164           This driver can access PCH GPIO device.
1165
1166           This driver also can be used for LAPIS Semiconductor IOH(Input/
1167           Output Hub), ML7223 and ML7831.
1168           ML7223 IOH is for MP(Media Phone) use.
1169           ML7831 IOH is for general purpose use.
1170           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1171           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1172
1173 config GPIO_PCI_IDIO_16
1174         tristate "ACCES PCI-IDIO-16 GPIO support"
1175         select GPIOLIB_IRQCHIP
1176         help
1177           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1178           generated when any of the inputs change state (low to high or high to
1179           low). Input filter control is not supported by this driver, and the
1180           input filters are deactivated by this driver.
1181
1182 config GPIO_RDC321X
1183         tristate "RDC R-321x GPIO support"
1184         select MFD_CORE
1185         select MFD_RDC321X
1186         help
1187           Support for the RDC R321x SoC GPIOs over southbridge
1188           PCI configuration space.
1189
1190 config GPIO_SODAVILLE
1191         bool "Intel Sodaville GPIO support"
1192         depends on X86 && OF
1193         select GPIO_GENERIC
1194         select GENERIC_IRQ_CHIP
1195         help
1196           Say Y here to support Intel Sodaville GPIO.
1197
1198 endmenu
1199
1200 menu "SPI GPIO expanders"
1201         depends on SPI_MASTER
1202
1203 config GPIO_74X164
1204         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1205         depends on OF_GPIO
1206         help
1207           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1208           shift registers. This driver can be used to provide access
1209           to more gpio outputs.
1210
1211 config GPIO_MAX7301
1212         tristate "Maxim MAX7301 GPIO expander"
1213         select GPIO_MAX730X
1214         help
1215           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1216
1217 config GPIO_MC33880
1218         tristate "Freescale MC33880 high-side/low-side switch"
1219         help
1220           SPI driver for Freescale MC33880 high-side/low-side switch.
1221           This provides GPIO interface supporting inputs and outputs.
1222
1223 config GPIO_PISOSR
1224         tristate "Generic parallel-in/serial-out shift register"
1225         help
1226           GPIO driver for SPI compatible parallel-in/serial-out shift
1227           registers. These are input only devices.
1228
1229 config GPIO_XRA1403
1230         tristate "EXAR XRA1403 16-bit GPIO expander"
1231         help
1232           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1233
1234 endmenu
1235
1236 menu "USB GPIO expanders"
1237         depends on USB
1238
1239 config GPIO_VIPERBOARD
1240         tristate "Viperboard GPIO a & b support"
1241         depends on MFD_VIPERBOARD
1242         help
1243           Say yes here to access the GPIO signals of Nano River
1244           Technologies Viperboard. There are two GPIO chips on the
1245           board: gpioa and gpiob.
1246           See viperboard API specification and Nano
1247           River Tech's viperboard.h for detailed meaning
1248           of the module parameters.
1249
1250 endmenu
1251
1252 endif