This patch should bring support for several kernel modules related to I2C to openwrt, which are existing for several years now. Namely there is the i2c-tiny-usb bus driver, to hook up an I2C bus on any device with usb support (prevent voiding warranty when opening and soldering). Second, there is support for the i2c-mux driver and pca954x as a I2C switch driver. Finally there is support for common I2C gpio expander driver modules pca953x and pcf857x. They work without providing platform data recently (can be instantiated at runtime).
Signed-off-by: Hartmut Knaack <knaack.h [at] gmx.de> Index: trunk/package/kernel/modules/i2c.mk =================================================================== --- trunk/package/kernel/modules/i2c.mk (Revision 26801) +++ trunk/package/kernel/modules/i2c.mk (Arbeitskopie) @@ -214,3 +214,80 @@ endef $(eval $(call KernelPackage,octeon-i2c)) + +I2C_TINY_USB_MODULES:= \ + CONFIG_I2C_TINY_USB:drivers/i2c/busses/i2c-tiny-usb + +define KernelPackage/i2c-tiny-usb + $(call i2c_defaults,$(I2C_TINY_USB_MODULES),59) + TITLE:=I2C Tiny USB adaptor + DEPENDS:=@USB_SUPPORT kmod-i2c-core +endef + +define KernelPackage/i2c-tiny-usb/description + Kernel module for the I2C Tiny USB adaptor developed + by Till Harbaum (http://www.harbaum.org/till/i2c_tiny_usb). +endef + +$(eval $(call KernelPackage,i2c-tiny-usb)) + +I2C_MUX_MODULES:= \ + CONFIG_I2C_MUX:drivers/i2c/i2c-mux + +define KernelPackage/i2c-mux + $(call i2c_defaults,$(I2C_MUX_MODULES),51) + TITLE:=I2C bus multiplexing support + DEPENDS:=kmod-i2c-core +endef + +define KernelPackage/i2c-mux/description + Kernel modules for I2C bus multiplexing support. +endef + +$(eval $(call KernelPackage,i2c-mux)) + +I2C_MUX_PCA954x_MODULES:= \ + CONFIG_I2C_MUX_PCA954x:drivers/i2c/muxes/pca954x + +define KernelPackage/i2c-mux-pca954x + $(call i2c_defaults,$(I2C_MUX_PCA954x_MODULES),51) + TITLE:=Philips PCA954x I2C mux/switches + DEPENDS:=kmod-i2c-mux +endef + +define KernelPackage/i2c-mux-pca954x/description + Kernel modules for PCA954x I2C bus mux/switching devices. +endef + +$(eval $(call KernelPackage,i2c-mux-pca954x)) +## Support for pca954x seems to be in kernel since 2.6.36 + +GPIO_PCA953X_MODULES:= \ + CONFIG_GPIO_PCA953X:drivers/gpio/pca953x + +define KernelPackage/pca953x + $(call i2c_defaults,$(GPIO_PCA953X_MODULES),51) + TITLE:=Philips PCA953x I2C GPIO extenders + DEPENDS:=kmod-i2c-core +endef + +define KernelPackage/pca953x/description + Kernel modules for PCA953x I2C GPIO extenders. +endef + +$(eval $(call KernelPackage,pca953x)) + +GPIO_PCF857X_MODULES:= \ + CONFIG_GPIO_PCF857X:drivers/gpio/pcf857x + +define KernelPackage/pcf857x + $(call i2c_defaults,$(GPIO_PCF857X_MODULES),51) + TITLE:=Philips PCF857x I2C GPIO extenders + DEPENDS:=kmod-i2c-core +endef + +define KernelPackage/pcf857x/description + Kernel modules for PCF857x I2C GPIO extenders. +endef + +$(eval $(call KernelPackage,pcf857x)) _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
