docs: misc-devices: convert files without extension to ReST
Those files are also text files. Convert them to ReST and add to the misc-files index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Link: https://lore.kernel.org/r/b7dc829809673bd8cffe0e7bbe9c9308681c6fe2.1561756511.git.mchehab+samsung@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>alistair/sunxi64-5.4-dsi
Mauro Carvalho Chehab
Greg Kroah-Hartman
parent
69416739ee
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9b5db89ea4
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@ -1,11 +1,17 @@
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====================
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Kernel driver eeprom
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====================
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Supported chips:
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* Any EEPROM chip in the designated address range
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Prefix: 'eeprom'
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Addresses scanned: I2C 0x50 - 0x57
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Datasheets: Publicly available from:
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Atmel (www.atmel.com),
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Catalyst (www.catsemi.com),
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Fairchild (www.fairchildsemi.com),
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@ -16,7 +22,9 @@ Supported chips:
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Xicor (www.xicor.com),
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and others.
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Chip Size (bits) Address
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========= ============= ============================================
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Chip Size (bits) Address
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========= ============= ============================================
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24C01 1K 0x50 (shadows at 0x51 - 0x57)
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24C01A 1K 0x50 - 0x57 (Typical device on DIMMs)
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24C02 2K 0x50 - 0x57
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@ -24,7 +32,7 @@ Supported chips:
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(additional data at 0x51, 0x53, 0x55, 0x57)
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24C08 8K 0x50, 0x54 (additional data at 0x51, 0x52,
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0x53, 0x55, 0x56, 0x57)
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24C16 16K 0x50 (additional data at 0x51 - 0x57)
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24C16 16K 0x50 (additional data at 0x51 - 0x57)
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Sony 2K 0x57
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Atmel 34C02B 2K 0x50 - 0x57, SW write protect at 0x30-37
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@ -33,14 +41,15 @@ Supported chips:
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Fairchild 34W02 2K 0x50 - 0x57, SW write protect at 0x30-37
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Microchip 24AA52 2K 0x50 - 0x57, SW write protect at 0x30-37
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ST M34C02 2K 0x50 - 0x57, SW write protect at 0x30-37
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========= ============= ============================================
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Authors:
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Frodo Looijaard <frodol@dds.nl>,
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Philip Edelbrock <phil@netroedge.com>,
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Jean Delvare <jdelvare@suse.de>,
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Greg Kroah-Hartman <greg@kroah.com>,
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IBM Corp.
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- Frodo Looijaard <frodol@dds.nl>,
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- Philip Edelbrock <phil@netroedge.com>,
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- Jean Delvare <jdelvare@suse.de>,
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- Greg Kroah-Hartman <greg@kroah.com>,
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- IBM Corp.
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Description
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-----------
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@ -74,23 +83,25 @@ this address will write protect the memory array permanently, and the
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device will no longer respond at the 0x30-37 address. The eeprom driver
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does not support this register.
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Lacking functionality:
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Lacking functionality
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---------------------
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* Full support for larger devices (24C04, 24C08, 24C16). These are not
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typically found on a PC. These devices will appear as separate devices at
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multiple addresses.
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typically found on a PC. These devices will appear as separate devices at
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multiple addresses.
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* Support for really large devices (24C32, 24C64, 24C128, 24C256, 24C512).
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These devices require two-byte address fields and are not supported.
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These devices require two-byte address fields and are not supported.
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* Enable Writing. Again, no technical reason why not, but making it easy
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to change the contents of the EEPROMs (on DIMMs anyway) also makes it easy
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to disable the DIMMs (potentially preventing the computer from booting)
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until the values are restored somehow.
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to change the contents of the EEPROMs (on DIMMs anyway) also makes it easy
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to disable the DIMMs (potentially preventing the computer from booting)
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until the values are restored somehow.
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Use:
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Use
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---
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After inserting the module (and any other required SMBus/i2c modules), you
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should have some EEPROM directories in /sys/bus/i2c/devices/* of names such
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should have some EEPROM directories in ``/sys/bus/i2c/devices/*`` of names such
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as "0-0050". Inside each of these is a series of files, the eeprom file
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contains the binary data from EEPROM.
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@ -1,10 +1,15 @@
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========================
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Kernel driver ics932s401
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======================
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========================
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Supported chips:
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* IDT ICS932S401
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Prefix: 'ics932s401'
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Addresses scanned: I2C 0x69
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Datasheet: Publicly available at the IDT website
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Author: Darrick J. Wong
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@ -14,4 +14,9 @@ fit into other categories.
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.. toctree::
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:maxdepth: 2
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eeprom
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ibmvmc
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ics932s401
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isl29003
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lis3lv02d
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max6875
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@ -1,10 +1,15 @@
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======================
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Kernel driver isl29003
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=====================
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======================
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Supported chips:
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* Intersil ISL29003
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Prefix: 'isl29003'
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Addresses scanned: none
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Datasheet:
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http://www.intersil.com/data/fn/fn7464.pdf
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@ -37,25 +42,33 @@ Sysfs entries
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-------------
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range:
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== ===========================
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0: 0 lux to 1000 lux (default)
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1: 0 lux to 4000 lux
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2: 0 lux to 16,000 lux
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3: 0 lux to 64,000 lux
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== ===========================
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resolution:
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== =====================
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0: 2^16 cycles (default)
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1: 2^12 cycles
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2: 2^8 cycles
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3: 2^4 cycles
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== =====================
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mode:
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== =================================================
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0: diode1's current (unsigned 16bit) (default)
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1: diode1's current (unsigned 16bit)
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2: difference between diodes (l1 - l2, signed 15bit)
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== =================================================
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power_state:
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== =================================================
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0: device is disabled (default)
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1: device is enabled
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== =================================================
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lux (read only):
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returns the value from the last sensor reading
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@ -1,3 +1,4 @@
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=======================
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Kernel driver lis3lv02d
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=======================
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@ -8,8 +9,8 @@ Supported chips:
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LIS331DLH (16 bits)
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Authors:
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Yan Burman <burman.yan@gmail.com>
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Eric Piel <eric.piel@tremplin-utc.net>
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- Yan Burman <burman.yan@gmail.com>
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- Eric Piel <eric.piel@tremplin-utc.net>
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Description
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@ -25,11 +26,15 @@ neverball). The accelerometer data is readable via
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to mg values (1/1000th of earth gravity).
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Sysfs attributes under /sys/devices/platform/lis3lv02d/:
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position - 3D position that the accelerometer reports. Format: "(x,y,z)"
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rate - read reports the sampling rate of the accelerometer device in HZ.
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position
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- 3D position that the accelerometer reports. Format: "(x,y,z)"
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rate
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- read reports the sampling rate of the accelerometer device in HZ.
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write changes sampling rate of the accelerometer device.
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Only values which are supported by HW are accepted.
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selftest - performs selftest for the chip as specified by chip manufacturer.
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selftest
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- performs selftest for the chip as specified by chip manufacturer.
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This driver also provides an absolute input class device, allowing
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the laptop to act as a pinball machine-esque joystick. Joystick device can be
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@ -69,11 +74,12 @@ Axes orientation
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For better compatibility between the various laptops. The values reported by
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the accelerometer are converted into a "standard" organisation of the axes
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(aka "can play neverball out of the box"):
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* When the laptop is horizontal the position reported is about 0 for X and Y
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and a positive value for Z
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and a positive value for Z
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* If the left side is elevated, X increases (becomes positive)
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* If the front side (where the touchpad is) is elevated, Y decreases
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(becomes negative)
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(becomes negative)
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* If the laptop is put upside-down, Z becomes negative
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If your laptop model is not recognized (cf "dmesg"), you can send an
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@ -1,12 +1,16 @@
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=====================
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Kernel driver max6875
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=====================
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Supported chips:
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* Maxim MAX6874, MAX6875
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Prefix: 'max6875'
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Addresses scanned: None (see below)
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Datasheet:
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http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf
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Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf
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Author: Ben Gardner <bgardner@wabtec.com>
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@ -24,9 +28,13 @@ registers.
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The Maxim MAX6874 is a similar, mostly compatible device, with more inputs
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and outputs:
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vin gpi vout
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=========== === === ====
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- vin gpi vout
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=========== === === ====
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MAX6874 6 4 8
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MAX6875 4 3 5
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=========== === === ====
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See the datasheet for more information.
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@ -41,13 +49,16 @@ General Remarks
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---------------
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Valid addresses for the MAX6875 are 0x50 and 0x52.
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Valid addresses for the MAX6874 are 0x50, 0x52, 0x54 and 0x56.
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The driver does not probe any address, so you explicitly instantiate the
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devices.
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Example:
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$ modprobe max6875
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$ echo max6875 0x50 > /sys/bus/i2c/devices/i2c-0/new_device
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Example::
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$ modprobe max6875
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$ echo max6875 0x50 > /sys/bus/i2c/devices/i2c-0/new_device
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The MAX6874/MAX6875 ignores address bit 0, so this driver attaches to multiple
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addresses. For example, for address 0x50, it also reserves 0x51.
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@ -58,52 +69,67 @@ Programming the chip using i2c-dev
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----------------------------------
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Use the i2c-dev interface to access and program the chips.
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Reads and writes are performed differently depending on the address range.
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The configuration registers are at addresses 0x00 - 0x45.
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Use i2c_smbus_write_byte_data() to write a register and
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i2c_smbus_read_byte_data() to read a register.
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The command is the register number.
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Examples:
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To write a 1 to register 0x45:
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To write a 1 to register 0x45::
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i2c_smbus_write_byte_data(fd, 0x45, 1);
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To read register 0x45:
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To read register 0x45::
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value = i2c_smbus_read_byte_data(fd, 0x45);
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The configuration EEPROM is at addresses 0x8000 - 0x8045.
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The user EEPROM is at addresses 0x8100 - 0x82ff.
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Use i2c_smbus_write_word_data() to write a byte to EEPROM.
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The command is the upper byte of the address: 0x80, 0x81, or 0x82.
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The data word is the lower part of the address or'd with data << 8.
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The data word is the lower part of the address or'd with data << 8::
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cmd = address >> 8;
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val = (address & 0xff) | (data << 8);
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Example:
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To write 0x5a to address 0x8003:
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To write 0x5a to address 0x8003::
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i2c_smbus_write_word_data(fd, 0x80, 0x5a03);
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Reading data from the EEPROM is a little more complicated.
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Use i2c_smbus_write_byte_data() to set the read address and then
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i2c_smbus_read_byte() or i2c_smbus_read_i2c_block_data() to read the data.
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Example:
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To read data starting at offset 0x8100, first set the address:
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To read data starting at offset 0x8100, first set the address::
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i2c_smbus_write_byte_data(fd, 0x81, 0x00);
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And then read the data
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And then read the data::
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value = i2c_smbus_read_byte(fd);
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or
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or::
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count = i2c_smbus_read_i2c_block_data(fd, 0x84, 16, buffer);
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The block read should read 16 bytes.
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0x84 is the block read command.
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See the datasheet for more details.
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@ -8871,7 +8871,7 @@ F: include/linux/leds.h
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LEGACY EEPROM DRIVER
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M: Jean Delvare <jdelvare@suse.com>
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S: Maintained
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F: Documentation/misc-devices/eeprom
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F: Documentation/misc-devices/eeprom.rst
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F: drivers/misc/eeprom/eeprom.c
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LEGO MINDSTORMS EV3
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@ -9157,7 +9157,7 @@ F: Documentation/memory-barriers.txt
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LIS3LV02D ACCELEROMETER DRIVER
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M: Eric Piel <eric.piel@tremplin-utc.net>
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S: Maintained
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F: Documentation/misc-devices/lis3lv02d
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F: Documentation/misc-devices/lis3lv02d.rst
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F: drivers/misc/lis3lv02d/
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F: drivers/platform/x86/hp_accel.c
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@ -3,7 +3,7 @@
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* isl29003.c - Linux kernel module for
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* Intersil ISL29003 ambient light sensor
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*
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* See file:Documentation/misc-devices/isl29003
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* See file:Documentation/misc-devices/isl29003.rst
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*
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* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
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*
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@ -341,7 +341,7 @@ config HP_ACCEL
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Support for a led indicating disk protection will be provided as
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hp::hddprotect. For more information on the feature, refer to
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Documentation/misc-devices/lis3lv02d.
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Documentation/misc-devices/lis3lv02d.rst.
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To compile this driver as a module, choose M here: the module will
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be called hp_accel.
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Reference in New Issue