Commit 8d24f8dc authored by Jean Delvare's avatar Jean Delvare Committed by Jean Delvare
Browse files

i2c: Let users select algorithm drivers manually again 

In kernel 2.6.26, the ability to select I2C algorithm drivers manually
was removed, as all in-kernel drivers do that automatically. However
there were some complaints that it was a problem for out-of-tree I2C
bus drivers. In order to address these complaints, let's allow manual
selection of these drivers again, but still hide them by default for
better general user experience.

This closes bug #11140:
http://bugzilla.kernel.org/show_bug.cgi?id=11140



Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent b25b791b

drivers/i2c/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -38,6 +38,20 @@ config I2C_CHARDEV 
	  This support is also available as a module.  If so, the module 

	  will be called i2c-dev.



config I2C_HELPER_AUTO

	bool "Autoselect pertinent helper modules"

	default y

	help

	  Some I2C bus drivers require so-called "I2C algorithm" modules

	  to work. These are basically software-only abstractions of generic

	  I2C interfaces. This option will autoselect them so that you don't

	  have to care.



	  Unselect this only if you need to enable additional helper

	  modules, for example for use with external I2C bus drivers.



	  In doubt, say Y.



source drivers/i2c/algos/Kconfig

source drivers/i2c/busses/Kconfig

source drivers/i2c/chips/Kconfig

drivers/i2c/algos/Kconfig

+8 −3
Original line number Diff line number Diff line
@@ -2,15 +2,20 @@ 
# I2C algorithm drivers configuration

#



menu "I2C Algorithms"

	depends on !I2C_HELPER_AUTO



config I2C_ALGOBIT

	tristate

	tristate "I2C bit-banging interfaces"



config I2C_ALGOPCF

	tristate

	tristate "I2C PCF 8584 interfaces"



config I2C_ALGOPCA

	tristate

	tristate "I2C PCA 9564 interfaces"



config I2C_ALGO_SGI

	tristate

	depends on SGI_IP22 || SGI_IP32 || X86_VISWS



endmenu

CRA Git | Maintained and supported by SUSTech CRA and CCSE