Hi, The following set of .config settings: #CONFIG_PM set to OFF CONFIG_USB_ARCH_HAS_EHCI=y triggers the following compile error: ... CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 arch/arm/mach-omap2/built-in.o: In function `omap3_sr_init': usb-ehci.c:(.init.text+0xc0c): undefined reference to `power_kobj' make: *** [.tmp_vmlinux1] Error 1 When EHCI is turned off, the error becomes: arch/arm/mach-omap2/built-in.o: In function `omap3_sr_init': board-omap3evm-flash.c:(.init.text+0xc0c): undefined reference to `power_kobj' make: *** [.tmp_vmlinux1] Error 1 Error disappears when Smart reflex is turned off: #OMAP_SMARTREFLEX set to OFF Than the kernel compiles OK. -dmt -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html