I’ve bought an EasyCap DC60 and i’ve found this fantastic driver for it:

http://sourceforge.net/projects/easycapdc60/

Obviously they aren’t available for our sheevaplug so i’m looking through the web on how to compile it,finally I was able to do it, this is the howto.

We suppose that [...]]]> Howto compile a module for sheeva without standard kernel headers

I’ve bought an EasyCap DC60 and i’ve found this fantastic driver for it:

http://sourceforge.net/projects/easycapdc60/

Obviously they aren’t available for our sheevaplug so i’m looking through the web on how to compile it,finally I was able to do it, this is the howto.

We suppose that sheevaplug is already runnning with a http://sheeva.with-linux.com/sheeva kernel (in this example 2.6.33.2).
All the operations described here are executed on a standard i686 linux pc (debian).

We need a cross-compiler, so go to this page and download the latest arm-XXXXXX-arm-none-eabi-i686-pc-linux-gnu.tar.bz2:
http://www.codesourcery.com/downloads/public/public/gnu_toolchain/arm-none-eabi
(in this example we use 2009q3-68)

First of all we need packages for cross-compile it

cd /usr/src
wget http://www.codesourcery.com/downloads/public/public/gnu_toolchain/arm-none-eabi/arm-2009q3-68-arm-none-eabi-i686-pc-linux-gnu.tar.bz2
tar xzvf arm-2009q3-68-arm-none-eabi-i686-pc-linux-gnu.tar.bz2
apt-get install build-essential

Then download the standard kernel from kernel.org (nowadays marvell patch is included in the mainline kernel tree), and apply the config from http://sheeva.with-linux.com

cd /usr/src
wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.33.2.tar.bz2
tar xvf linux-2.6.33.2.tar.bz2
cd linux-2.6.33.2
wget http://sheeva.with-linux.com/sheeva/2.6.33.2/sheeva-2.6.33.2.config
cp sheeva-2.6.33.2.config .config
make ARCH=arm oldconfig

Now we can compile it, if you wouldn’t waste time you can stop it after the first “CC …” lines, when it has already done “HOSTCC/scripts …“, at this time it has already generated header needed by us. If you want you can also compile it all (better).

make -j4 ARCH=arm CROSS_COMPILE=../arm-2009q3/bin/arm-none-eabi-

In this example we try to compile easycap driver, but you can adapt it to any external modules:

cd /usr/src
wget “http://downloads.sourceforge.net/project/easycapdc60/easycap_dc60.0.7.1.tar.gz?use_mirror=netcologne”
cd easycap_dc60.0.7.1
make clean

Edit src/MakeFile (vi src/Makefile) and replace KERNELDIR line with this:

KERNELDIR ?= /usr/src/linux-2.6.33.2

and now compile it:

make -j4 ARCH=arm CROSS_COMPILE=/usr/src/arm-2009q3/bin/arm-none-eabi-

All done!

Login to your sheevaplug and copy the new kernel mod in /lib/modules/`uname -r`/kernel/drivers/media/video

scp 192.168.1.220:/usr/src/easycap_dc60.0.7.1/src/easycap.ko /lib/modules/`uname -r`/kernel/drivers/media/video
depmod -a

try to insmod it and enjoy

In this example we suppose that our pc has ip 192.168.1.220, and the network has dhcp. First of all install packages needed:

apt-get install git-core build-essential

Then download the latest kernel from Marvell:

cd /usr/src git clone git://git.marvell.com/orion.git

Then set default config for SheevaPlug:

cd orion make [...]]]> Howto recompile a custom kernel for our SheevaPlug:

In this example we suppose that our pc has ip 192.168.1.220, and the network has dhcp.
First of all install packages needed:

apt-get install git-core build-essential

Then download the latest kernel from Marvell:

cd /usr/src
git clone git://git.marvell.com/orion.git

Then set default config for SheevaPlug:

cd orion
make ARCH=arm kirkwood_defconfig

And then run menuconfig for set our personalized features:

make ARCH=arm menuconfig

When done, save the config and compile it:

make -j4 ARCH=arm CROSS_COMPILE=../arm-2009q3/bin/arm-none-eabi- uImage

make -j4 ARCH=arm CROSS_COMPILE=../arm-2009q3/bin/arm-none-eabi- modules

make -j4 ARCH=arm CROSS_COMPILE=../arm-2009q3/bin/arm-none-eabi- INSTALL_MOD_PATH=.. modules_install

The last command copy our modules in ../lib, we make a tar of them and copy into sheevaplug:

cd ..
tar cvf lib_snapshot.tar lib

The new kernel is built in orion/arch/arm/boot/, we copy it in our tftp directory

cp orion/arch/arm/boot/uImage /var/lib/tftpboot

log in as root in sheevaplug, and copy the tar of modules:

scp 192.168.1.220:/usr/src/sheeva/compile/lib_snapshot.tar .
tar xvf lib_snapshot.tar
mv lib/modules/2.6.KERNEL_VERSION /lib/modules

now we need to connect the sheeva’s console cable to our pc and connect with a terminal emulator like minicom (for information on how to do this look at plugcomputer.org), stop the boot process and go to bootloader prompt. On our machine we need to setup a tftp server (information at http://plugcomputer.org), in this example 192.168.1.220 is the tftpserver ip.

Write this on bootloader prompt:

bootp
setenv serverip 192.168.1.220
tftpboot 0x2000000 uImage
setenv bootargs $(bootargs_console) $(mtdpartitions) $(bootargs_root)
bootm 0x2000000

Now our sheevaplug is booting with new kernel….
If it start run uname -a and look the kernel version!
Enjoy

Test your sheevaplug with your new kernel, it is running well we can write the new kernel in flash, copy the uImage in any directory of sheevplug and flash it!

scp 192.168.1.220:/var/lib/tftpboot/uImage /tmp
flash_eraseall /dev/mtd0
nandwrite -p /dev/mtd0 /tmp/uImage

reboot and sheevaplug automatically start with new kernel