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I've been trying cross compile kernel using this guide.
http://elinux.org/Rpi_kernel_compilation#2._Cross_compiling_from_Linux.
However, all my kernel doesn't support USB mouse and keyboard. In the menuconfig section, what driver/module I need to activate in order my kernel to support USB mouse and keyboard?
To enable USB mouse/keyboard support in the kernel, run make menuconfig. Go to Device Drivers -> HID support -> USB HID support and select USB HID transport layer, which is CONFIG_USB_HID. I'm not sure it's necessary for the terminal, but you may also want to enable Event interface (CONFIG_INPUT_EVDEV) under Input device support if it isn't already in order to be able to use the mouse and keyboard under Xorg.
You can often find the configurations used to compile the currently running kernel in the special file /proc/config.gz . You could use this configuration as a starting point when compiling your own kernel. Get it from the Pi, gunzip it, and tell make menuconfig to load this configuration (can't remember exactly how).
The configuration is actually stored within the kernel itself. This can be turned off when the kernel is compiled, but my current kernels for both Arch Linux and Raspbian have it. And indeed, the instructions include this step, a bit further down.
you should beable to find what you need to do here: http://elinux.org/RPi_Kernel_Compilation#Get_the_kernel_source
