Hi, By default exynos4_defconfig, 3.0-rc1 can't compile the code. It seem to have dependency on usb configuration. Error message: arch/arm/plat-s5p/built-in.o: In function `s5p_ehci_set_platdata': /home/cornus/tmp/linux-3.0-rc1/arch/arm/plat-s5p/dev-ehci.c:54: undefined reference to `s5p_usb_phy_init' /home/cornus/tmp/linux-3.0-rc1/arch/arm/plat-s5p/dev-ehci.c:54: undefined reference to `s5p_usb_phy_init' /home/cornus/tmp/linux-3.0-rc1/arch/arm/plat-s5p/dev-ehci.c:56: undefined reference to `s5p_usb_phy_exit' /home/cornus/tmp/linux-3.0-rc1/arch/arm/plat-s5p/dev-ehci.c:56: undefined reference to `s5p_usb_phy_exit' make: *** [.tmp_vmlinux1] Error 1 Regards, SB Kim -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html