This procedure rebuilds the kernel modules for usb networking but the same procedure can be applied to other modules as well.
I am running Ubuntu 11.04 preinstalled netbook image for OMAP4.
Obtain Kernel Source
Download debian package from launchpad. I could not
apt-get it for some reason. So I installed the deb package using
sudo dpkg -i linux-source-2.6.38_2.6.38-11.48_all.deb
Extract kernel source
After installation, the compressed kernel source is available at
/usr/src/linux-source-2.6.38. You can extract the kernel source to your home folder like this
tar xjf /usr/src/linux-source-2.6.38/linux-source-2.6.38.tar.bz2
Obtain Kernel Headers
You may already have the kernel headers installed, otherwise
sudo apt-get linux-headers-omap4
Head over to the folder of the module
make -C /usr/src/linux-headers-2.6.38-1208-omap4 M=`pwd`
Backup existing module objects in case something goes wrong. Replace them
sudo cp *.ko /lib/modules/2.6.38-1208-omap4/kernel/drivers/net/usb/
Check if a module is already loaded
and remove it
Do something like plugging in the hardware so that the new module gets loaded.
[With some inspiration from here. The reason I was rebuilding was to fix a regression in the usbnet driver reported here.]
There are two ways.
Load the usbmon module
The following command then prints data going to and fro on a bus
sudo cat /sys/kernel/debug/usb/usbmon/1u
I refer you to their USB wiki.
I didn’t see that coming, but it seems such a natural thing for Google and Motorola Mobility to have done.
Here’s why I think so:
1. Motorola probably has contributed more to Android than any other partner, other than Google itself.
2. The Motorola patents. They reportedly have over 17000 patents, a huge number of them in personal communications I’ll assume. They’ll save Android.
3. Google has a lot of clout on the cloud with the PC. Apple is doing some pretty neat things with its interpretation of what the cloud should be. In the mobile communications space, it may actually be starting a small revolution. Google can now deeply integrate its services, such as Google+, into mobile devices. Like Apple is doing with Twitter. Google did not have to buy Motorola to do that but now they have more reason to do it.
4. Google can now walk the talk. It is one thing to create an OS, another to design it with deep integration between hardware, software, and now, cloud services. It means supporting customers and listening to them bicker, and evolving with it. It means having some clout over the evolution of hardware.
5. Google can positively influence Motorola on design.
6. It may have a positive effect on the bottom line of both companies.
The other thing that Google could have done was to spin off Android to Motorola Mobility for peanuts, but putting measures in place for Android to thrive as open source. That they decided to stick with Android means that they are betting their future on it. I, for one, am keen to see what that future will be.