drivers/i2c/Kconfig

   1 #
   2 # I2C subsystem configuration
   3 #
   4
   5 menuconfig I2C
   6         tristate "I2C support"
   7         ---help---
   8           I2C (pronounce: I-square-C) is a slow serial bus protocol used in
   9           many micro controller applications and developed by Philips.  SMBus,
  10           or System Management Bus is a subset of the I2C protocol.  More
  11           information is contained in the directory <file:Documentation/i2c/>,
  12           especially in the file called "summary" there.
  13
  14           Both I2C and SMBus are supported here. You will need this for
  15           hardware sensors support, and also for Video For Linux support.
  16
  17           If you want I2C support, you should say Y here and also to the
  18           specific driver for your bus adapter(s) below.
  19
  20           This I2C support can also be built as a module.  If so, the module
  21           will be called i2c-core.
  22
  23 if I2C
  24
  25 config I2C_BOARDINFO
  26         boolean
  27         default y
  28
  29 config I2C_CHARDEV
  30         tristate "I2C device interface"
  31         help
  32           Say Y here to use i2c-* device files, usually found in the /dev
  33           directory on your system.  They make it possible to have user-space
  34           programs use the I2C bus.  Information on how to do this is
  35           contained in the file <file:Documentation/i2c/dev-interface>.
  36
  37           This support is also available as a module.  If so, the module
  38           will be called i2c-dev.
  39
  40 source drivers/i2c/algos/Kconfig
  41 source drivers/i2c/busses/Kconfig
  42 source drivers/i2c/chips/Kconfig
  43
  44 config I2C_DEBUG_CORE
  45         bool "I2C Core debugging messages"
  46         help
  47           Say Y here if you want the I2C core to produce a bunch of debug
  48           messages to the system log.  Select this if you are having a
  49           problem with I2C support and want to see more of what is going on.
  50
  51 config I2C_DEBUG_ALGO
  52         bool "I2C Algorithm debugging messages"
  53         help
  54           Say Y here if you want the I2C algorithm drivers to produce a bunch
  55           of debug messages to the system log.  Select this if you are having
  56           a problem with I2C support and want to see more of what is going
  57           on.
  58
  59 config I2C_DEBUG_BUS
  60         bool "I2C Bus debugging messages"
  61         help
  62           Say Y here if you want the I2C bus drivers to produce a bunch of
  63           debug messages to the system log.  Select this if you are having
  64           a problem with I2C support and want to see more of what is going
  65           on.
  66
  67 config I2C_DEBUG_CHIP
  68         bool "I2C Chip debugging messages"
  69         help
  70           Say Y here if you want the I2C chip drivers to produce a bunch of
  71           debug messages to the system log.  Select this if you are having
  72           a problem with I2C support and want to see more of what is going
  73           on.
  74
  75 endif # I2C