forked from Minki/linux
5bf1d290b5
This driver adds support for the BMP085 digital pressure sensor from Bosch Sensortec. It exposes a sysfs api to userspace where pressure and temperature measurement results can be read from the pressure0_input and temp0_input file. The chip is able to calculate the average of up to eight samples to increase the accuracy. This feature can be controlled by writing to the oversampling file. The BMP085 digital pressure sensor can measure ambient air pressure and temperature. Both values can be obtained from sysfs files. The pressure is measured by reading from pressure0_input. Valid values range from 30000 to 110000 pascal with a resolution of 1 pascal (=0.01 millibar). temp0_input holds the current temperature in degree celsius, multiplied by 10. This results in a resolution of a tenth degree celsius. Values range from -400 to 850. To increase the accuracy, this chip can calculate the average of 1, 2, 4 or 8 samples. This behavior is controlled through the oversampling sysfs file. Two to the power of the value written to that file specifies how many samples will be used. Valid values: 0..3. [akpm@linux-foundation.org: fix typo] [shubhrajyoti@ti.com: optimize the wait time for the pressure sensor, definition of long is arch dependent so make it u32] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Christoph Mair <christoph.mair@gmail.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Cc: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
392 lines
13 KiB
Plaintext
392 lines
13 KiB
Plaintext
#
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# Misc strange devices
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#
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menuconfig MISC_DEVICES
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bool "Misc devices"
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default y
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---help---
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Say Y here to get to see options for device drivers from various
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different categories. This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and disabled.
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if MISC_DEVICES
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config AD525X_DPOT
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tristate "Analog Devices Digital Potentiometers"
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depends on (I2C || SPI) && SYSFS
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help
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If you say yes here, you get support for the Analog Devices
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AD5258, AD5259, AD5251, AD5252, AD5253, AD5254, AD5255
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AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
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AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
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AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
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AD7376, AD8400, AD8402, AD8403, ADN2850, AD5241, AD5242,
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AD5243, AD5245, AD5246, AD5247, AD5248, AD5280, AD5282,
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ADN2860, AD5273, AD5171, AD5170, AD5172, AD5173
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digital potentiometer chips.
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See Documentation/misc-devices/ad525x_dpot.txt for the
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userspace interface.
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This driver can also be built as a module. If so, the module
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will be called ad525x_dpot.
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config AD525X_DPOT_I2C
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tristate "support I2C bus connection"
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depends on AD525X_DPOT && I2C
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help
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Say Y here if you have a digital potentiometers hooked to an I2C bus.
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To compile this driver as a module, choose M here: the
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module will be called ad525x_dpot-i2c.
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config AD525X_DPOT_SPI
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tristate "support SPI bus connection"
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depends on AD525X_DPOT && SPI_MASTER
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help
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Say Y here if you have a digital potentiometers hooked to an SPI bus.
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If unsure, say N (but it's safe to say "Y").
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To compile this driver as a module, choose M here: the
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module will be called ad525x_dpot-spi.
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config ATMEL_PWM
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tristate "Atmel AT32/AT91 PWM support"
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depends on AVR32 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9
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help
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This option enables device driver support for the PWM channels
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on certain Atmel processors. Pulse Width Modulation is used for
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purposes including software controlled power-efficient backlights
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on LCD displays, motor control, and waveform generation.
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config ATMEL_TCLIB
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bool "Atmel AT32/AT91 Timer/Counter Library"
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depends on (AVR32 || ARCH_AT91)
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help
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Select this if you want a library to allocate the Timer/Counter
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blocks found on many Atmel processors. This facilitates using
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these blocks by different drivers despite processor differences.
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config ATMEL_TCB_CLKSRC
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bool "TC Block Clocksource"
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depends on ATMEL_TCLIB
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default y
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help
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Select this to get a high precision clocksource based on a
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TC block with a 5+ MHz base clock rate. Two timer channels
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are combined to make a single 32-bit timer.
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When GENERIC_CLOCKEVENTS is defined, the third timer channel
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may be used as a clock event device supporting oneshot mode
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(delays of up to two seconds) based on the 32 KiHz clock.
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config ATMEL_TCB_CLKSRC_BLOCK
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int
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depends on ATMEL_TCB_CLKSRC
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prompt "TC Block" if ARCH_AT91RM9200 || ARCH_AT91SAM9260 || CPU_AT32AP700X
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default 0
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range 0 1
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help
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Some chips provide more than one TC block, so you have the
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choice of which one to use for the clock framework. The other
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TC can be used for other purposes, such as PWM generation and
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interval timing.
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config IBM_ASM
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tristate "Device driver for IBM RSA service processor"
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depends on X86 && PCI && INPUT && EXPERIMENTAL
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---help---
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This option enables device driver support for in-band access to the
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IBM RSA (Condor) service processor in eServer xSeries systems.
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The ibmasm device driver allows user space application to access
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ASM (Advanced Systems Management) functions on the service
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processor. The driver is meant to be used in conjunction with
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a user space API.
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The ibmasm driver also enables the OS to use the UART on the
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service processor board as a regular serial port. To make use of
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this feature serial driver support (CONFIG_SERIAL_8250) must be
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enabled.
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WARNING: This software may not be supported or function
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correctly on your IBM server. Please consult the IBM ServerProven
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website <http://www.pc.ibm.com/ww/eserver/xseries/serverproven> for
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information on the specific driver level and support statement
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for your IBM server.
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config PHANTOM
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tristate "Sensable PHANToM (PCI)"
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depends on PCI
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help
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Say Y here if you want to build a driver for Sensable PHANToM device.
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This driver is only for PCI PHANToMs.
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If you choose to build module, its name will be phantom. If unsure,
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say N here.
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config SGI_IOC4
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tristate "SGI IOC4 Base IO support"
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depends on PCI
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---help---
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This option enables basic support for the IOC4 chip on certain
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SGI IO controller cards (IO9, IO10, and PCI-RT). This option
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does not enable any specific functions on such a card, but provides
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necessary infrastructure for other drivers to utilize.
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If you have an SGI Altix with an IOC4-based card say Y.
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Otherwise say N.
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config TIFM_CORE
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tristate "TI Flash Media interface support (EXPERIMENTAL)"
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depends on EXPERIMENTAL && PCI
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help
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If you want support for Texas Instruments(R) Flash Media adapters
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you should select this option and then also choose an appropriate
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host adapter, such as 'TI Flash Media PCI74xx/PCI76xx host adapter
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support', if you have a TI PCI74xx compatible card reader, for
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example.
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You will also have to select some flash card format drivers. MMC/SD
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cards are supported via 'MMC/SD Card support: TI Flash Media MMC/SD
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Interface support (MMC_TIFM_SD)'.
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To compile this driver as a module, choose M here: the module will
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be called tifm_core.
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config TIFM_7XX1
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tristate "TI Flash Media PCI74xx/PCI76xx host adapter support (EXPERIMENTAL)"
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depends on PCI && TIFM_CORE && EXPERIMENTAL
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default TIFM_CORE
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help
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This option enables support for Texas Instruments(R) PCI74xx and
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PCI76xx families of Flash Media adapters, found in many laptops.
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To make actual use of the device, you will have to select some
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flash card format drivers, as outlined in the TIFM_CORE Help.
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To compile this driver as a module, choose M here: the module will
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be called tifm_7xx1.
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config ICS932S401
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tristate "Integrated Circuits ICS932S401"
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depends on I2C && EXPERIMENTAL
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help
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If you say yes here you get support for the Integrated Circuits
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ICS932S401 clock control chips.
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This driver can also be built as a module. If so, the module
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will be called ics932s401.
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config ATMEL_SSC
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tristate "Device driver for Atmel SSC peripheral"
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depends on AVR32 || ARCH_AT91
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---help---
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This option enables device driver support for Atmel Synchronized
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Serial Communication peripheral (SSC).
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The SSC peripheral supports a wide variety of serial frame based
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communications, i.e. I2S, SPI, etc.
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If unsure, say N.
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config ENCLOSURE_SERVICES
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tristate "Enclosure Services"
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default n
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help
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Provides support for intelligent enclosures (bays which
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contain storage devices). You also need either a host
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driver (SCSI/ATA) which supports enclosures
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or a SCSI enclosure device (SES) to use these services.
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config SGI_XP
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tristate "Support communication between SGI SSIs"
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depends on NET
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depends on (IA64_GENERIC || IA64_SGI_SN2 || IA64_SGI_UV || X86_UV) && SMP
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select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
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select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
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select SGI_GRU if X86_64 && SMP
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---help---
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An SGI machine can be divided into multiple Single System
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Images which act independently of each other and have
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hardware based memory protection from the others. Enabling
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this feature will allow for direct communication between SSIs
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based on a network adapter and DMA messaging.
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config CS5535_MFGPT
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tristate "CS5535/CS5536 Geode Multi-Function General Purpose Timer (MFGPT) support"
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depends on PCI
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depends on X86
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default n
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help
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This driver provides access to MFGPT functionality for other
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drivers that need timers. MFGPTs are available in the CS5535 and
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CS5536 companion chips that are found in AMD Geode and several
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other platforms. They have a better resolution and max interval
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than the generic PIT, and are suitable for use as high-res timers.
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You probably don't want to enable this manually; other drivers that
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make use of it should enable it.
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config CS5535_MFGPT_DEFAULT_IRQ
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int
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depends on CS5535_MFGPT
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default 7
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help
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MFGPTs on the CS5535 require an interrupt. The selected IRQ
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can be overridden as a module option as well as by driver that
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use the cs5535_mfgpt_ API; however, different architectures might
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want to use a different IRQ by default. This is here for
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architectures to set as necessary.
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config CS5535_CLOCK_EVENT_SRC
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tristate "CS5535/CS5536 high-res timer (MFGPT) events"
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depends on GENERIC_CLOCKEVENTS && CS5535_MFGPT
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help
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This driver provides a clock event source based on the MFGPT
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timer(s) in the CS5535 and CS5536 companion chips.
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MFGPTs have a better resolution and max interval than the
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generic PIT, and are suitable for use as high-res timers.
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config HP_ILO
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tristate "Channel interface driver for HP iLO/iLO2 processor"
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depends on PCI
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default n
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help
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The channel interface driver allows applications to communicate
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with iLO/iLO2 management processors present on HP ProLiant
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servers. Upon loading, the driver creates /dev/hpilo/dXccbN files,
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which can be used to gather data from the management processor,
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via read and write system calls.
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To compile this driver as a module, choose M here: the
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module will be called hpilo.
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config SGI_GRU
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tristate "SGI GRU driver"
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depends on X86_UV && SMP
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default n
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select MMU_NOTIFIER
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---help---
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The GRU is a hardware resource located in the system chipset. The GRU
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contains memory that can be mmapped into the user address space. This memory is
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used to communicate with the GRU to perform functions such as load/store,
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scatter/gather, bcopy, AMOs, etc. The GRU is directly accessed by user
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instructions using user virtual addresses. GRU instructions (ex., bcopy) use
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user virtual addresses for operands.
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If you are not running on a SGI UV system, say N.
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config SGI_GRU_DEBUG
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bool "SGI GRU driver debug"
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depends on SGI_GRU
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default n
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---help---
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This option enables addition debugging code for the SGI GRU driver. If
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you are unsure, say N.
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config ISL29003
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tristate "Intersil ISL29003 ambient light sensor"
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depends on I2C && SYSFS
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help
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If you say yes here you get support for the Intersil ISL29003
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ambient light sensor.
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This driver can also be built as a module. If so, the module
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will be called isl29003.
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config SENSORS_TSL2550
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tristate "Taos TSL2550 ambient light sensor"
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depends on I2C && SYSFS
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help
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If you say yes here you get support for the Taos TSL2550
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ambient light sensor.
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This driver can also be built as a module. If so, the module
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will be called tsl2550.
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config SENSORS_BH1780
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tristate "ROHM BH1780GLI ambient light sensor"
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depends on I2C && SYSFS
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help
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If you say yes here you get support for the ROHM BH1780GLI
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ambient light sensor.
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This driver can also be built as a module. If so, the module
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will be called bh1780gli.
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config EP93XX_PWM
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tristate "EP93xx PWM support"
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depends on ARCH_EP93XX
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help
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This option enables device driver support for the PWM channels
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on the Cirrus EP93xx processors. The EP9307 chip only has one
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PWM channel all the others have two, the second channel is an
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alternate function of the EGPIO14 pin. A sysfs interface is
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provided to control the PWM channels.
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To compile this driver as a module, choose M here: the module will
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be called ep93xx_pwm.
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config DS1682
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tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
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depends on I2C && EXPERIMENTAL
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help
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If you say yes here you get support for Dallas Semiconductor
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DS1682 Total Elapsed Time Recorder.
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This driver can also be built as a module. If so, the module
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will be called ds1682.
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config TI_DAC7512
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tristate "Texas Instruments DAC7512"
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depends on SPI && SYSFS
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help
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If you say yes here you get support for the Texas Instruments
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DAC7512 16-bit digital-to-analog converter.
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This driver can also be built as a module. If so, the module
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will be calles ti_dac7512.
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config VMWARE_BALLOON
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tristate "VMware Balloon Driver"
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depends on X86
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help
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This is VMware physical memory management driver which acts
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like a "balloon" that can be inflated to reclaim physical pages
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by reserving them in the guest and invalidating them in the
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monitor, freeing up the underlying machine pages so they can
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be allocated to other guests. The balloon can also be deflated
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to allow the guest to use more physical memory.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called vmware_balloon.
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config ARM_CHARLCD
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bool "ARM Ltd. Character LCD Driver"
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depends on PLAT_VERSATILE
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help
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This is a driver for the character LCD found on the ARM Ltd.
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Versatile and RealView Platform Baseboards. It doesn't do
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very much more than display the text "ARM Linux" on the first
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line and the Linux version on the second line, but that's
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still useful.
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config BMP085
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tristate "BMP085 digital pressure sensor"
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depends on I2C && SYSFS
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help
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If you say yes here you get support for the Bosch Sensortec
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BMP086 digital pressure sensor.
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To compile this driver as a module, choose M here: the
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module will be called bmp085.
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source "drivers/misc/c2port/Kconfig"
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source "drivers/misc/eeprom/Kconfig"
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source "drivers/misc/cb710/Kconfig"
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source "drivers/misc/iwmc3200top/Kconfig"
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endif # MISC_DEVICES
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