How to use eGalax USB touchscreen and compile kernel

Recently i had problems using eGalax usb touchscreen
To be able to use it you must recompile kernel
Heres also little tutorial how to compile kernel(can be useful, because i didnt find good information on this forum about this)

you will need ethernet connection
it is useful to have wicd-curses utility (install it with apt-get install wicd-curses)
To make compiling easiet-compile inside Udoo

CD to directory (you can choose other dir)
# cd /usr/src
# apt-get install git
# apt-get install ncurses-dev aptitude

# aptitude
In aptitude remove packages: udoo-config u-boot-env
and install uboot-mkimage
(It conficts)
Use keys:
/ and n for search
+ for install
- for deinstall
g for apply

# git clone https://github.com/UDOOboard/Kernel_Unico.git
# cd Kernel_Unico
# make UDOO_defconfig
# make menuconfig

and there you must check options:
Device Drivers -> Input Device Support -> Touchscreens -> check all eGalax with *
(EETI maybe also)
(PS you can enable other drivers, for example you can change UDOO usb ethernet to usb serial Drivers->usb support->usb gadget etc and check usb_serial rather than usb_ethernet)

now exit and compile everything
# make -j4 uImage
when it is done it will output something like:

# make -j4 modules
# make modules_install
# make firmware_install

now backup your old kernel and copy new
# cp /boot/uImage /boot/uImage.bak
#cp arch/arm/boot/uImage /boot/


if comething goes wrong you can boot old backuped kernel:
when bootloader starts hit Enter
check all by
#printenv
now
#setenv uImage uImage.bak
(as i remember)
#boot

...Hope it will be useful
Such approach can be done with other ARM boards like Beaglebone,Olinuxino,Rapberry etc...

 

Firstly, thank you very much for your detailed description. I did recompilation of kernel in ubuntu thanks to your topic.
How can we recompile the Android kernel sources(kernel_unico) from udoo?
I mean not using computer. I would like to just copy kernel_unico to android filesystem, and using terminal emulator(a program can be used in Android) i would like to recompile the kernel just above your tutorial. Is it possible in android?
If is, how can we do that?
(Both adb or terminal emulator, i can use some commands in Android.)
Any help greatly appreciated.

 

@his
It's impossible this way, you'll miss packages and stuff to accomplish what you aim.