| # | 
 | # I2C subsystem configuration | 
 | # | 
 |  | 
 | menuconfig I2C | 
 | 	tristate "I2C support" | 
 | 	depends on HAS_IOMEM | 
 | 	---help--- | 
 | 	  I2C (pronounce: I-square-C) is a slow serial bus protocol used in | 
 | 	  many micro controller applications and developed by Philips.  SMBus, | 
 | 	  or System Management Bus is a subset of the I2C protocol.  More | 
 | 	  information is contained in the directory <file:Documentation/i2c/>, | 
 | 	  especially in the file called "summary" there. | 
 |  | 
 | 	  Both I2C and SMBus are supported here. You will need this for | 
 | 	  hardware sensors support, and also for Video For Linux support. | 
 |  | 
 | 	  If you want I2C support, you should say Y here and also to the | 
 | 	  specific driver for your bus adapter(s) below. | 
 |  | 
 | 	  This I2C support can also be built as a module.  If so, the module | 
 | 	  will be called i2c-core. | 
 |  | 
 | if I2C | 
 |  | 
 | config I2C_BOARDINFO | 
 | 	boolean | 
 | 	default y | 
 |  | 
 | config I2C_CHARDEV | 
 | 	tristate "I2C device interface" | 
 | 	help | 
 | 	  Say Y here to use i2c-* device files, usually found in the /dev | 
 | 	  directory on your system.  They make it possible to have user-space | 
 | 	  programs use the I2C bus.  Information on how to do this is | 
 | 	  contained in the file <file:Documentation/i2c/dev-interface>. | 
 |  | 
 | 	  This support is also available as a module.  If so, the module  | 
 | 	  will be called i2c-dev. | 
 |  | 
 | source drivers/i2c/algos/Kconfig | 
 | source drivers/i2c/busses/Kconfig | 
 | source drivers/i2c/chips/Kconfig | 
 |  | 
 | config I2C_DEBUG_CORE | 
 | 	bool "I2C Core debugging messages" | 
 | 	help | 
 | 	  Say Y here if you want the I2C core to produce a bunch of debug | 
 | 	  messages to the system log.  Select this if you are having a | 
 | 	  problem with I2C support and want to see more of what is going on. | 
 |  | 
 | config I2C_DEBUG_ALGO | 
 | 	bool "I2C Algorithm debugging messages" | 
 | 	help | 
 | 	  Say Y here if you want the I2C algorithm drivers to produce a bunch | 
 | 	  of debug messages to the system log.  Select this if you are having | 
 | 	  a problem with I2C support and want to see more of what is going | 
 | 	  on. | 
 |  | 
 | config I2C_DEBUG_BUS | 
 | 	bool "I2C Bus debugging messages" | 
 | 	help | 
 | 	  Say Y here if you want the I2C bus drivers to produce a bunch of | 
 | 	  debug messages to the system log.  Select this if you are having | 
 | 	  a problem with I2C support and want to see more of what is going | 
 | 	  on. | 
 |  | 
 | config I2C_DEBUG_CHIP | 
 | 	bool "I2C Chip debugging messages" | 
 | 	help | 
 | 	  Say Y here if you want the I2C chip drivers to produce a bunch of | 
 | 	  debug messages to the system log.  Select this if you are having | 
 | 	  a problem with I2C support and want to see more of what is going | 
 | 	  on. | 
 |  | 
 | endif # I2C |