Database Users

dynamic modules for stock Asus Transformer kernel running Android 3.1

I have compiled several dynamic modules for the stock Asus transformer (TF101) kernel running Android 3.1. These include the cifs.ko, and the modules needed for NFS. They all work fine and are available on my site (facti.net), feel free to grab them or read through the instructions on compiling the kernel if you need them.
In any case, I have had some requests for other modules. If there is some module you would like and the functionality is not already built in to the kernel (like loop, which is already built in) then let me know and I can compile it and make it available as well.
Note: these are dynamic modules for the stock kernel, you do not need to upgrade your kernel, you simply insmod the module. However, you do need to have a rooted transformer.

[Q] [REQ] NFS kernel modules for XWKE7

I have been searching for nfs kernel modules for my SGS2 with the XWKE7 firmware. (I want to mount NFS shares on my phone, not share directories from my phone)
But alas, so far I have been unable to find them. Maybe I have not been looking in the right places...
Can anybody help me out here?
Thanx a lot.

yes please, i am also looking for either nfs kernel modules or a kernel for i9100 which was compiled with nfs support. dorimanx claims to have it, but it hasn't
maybe a good site with instructions how to cross-compile nfs.ko and other modules for android?
thanx

[Q] Why not compile the tun.ko module with Asus TF101 ROMs?

Hi all,
I've looked at forums in the DEV section and can find a tun.ko module for an earlier kernel of the TF101. None of the ROMs including Clemsys, Revolver's, Netformer's, Prime's and any other I have download include this module in their kernel builds. I would like for this module to be included, which was in Prime 1.2, but that was for a kernel that is no longer in use and that is for Honeycomb 3.0. So my question to the Devs is, why no compile tun.ko for any and all the ROMs you deploy?
Thanks for your response.
In case people don't know, tun.ko is the module that allows a rooted device use an app like VPNC to log into and create a VPN tunnel through a Cisco VPN Concentrator.
jamdev12

Are you sure, TUN isn't in prime 1.6? I see it listed as added in version 1.4, so I don't think that it would have been removed in updated versions.

All the ROMS you mentioned (clemsyn, PRIME, Revolver) include the tun.ko compiled into the kernel. You do not need any external tun.ko module for VPN to work.
However, the trick to get VPNC to work is to rename the file /system/bin/ip to /system/bin/ip.bak. This causes the /system/xbin/ip to be picked up instead while works fine.

guptaavi,
Thanks for the info. I'm stupidfied and you have enlighten me. I know that sounds corny, but I appreciate the help here, because since I did not see the module in the /system/lib/modules folder, I thought it wasn't compiled. Now I know the difference between compiling it into the kernel and compiling it for the kernel.
jamdev

Hi guptaavi,
So I must be stupid, because I did what you just told me about changing the file name for the /system/bin/ip to ip.bak, but the VPNC widget takes forever to start and it just fails. I know the settings are correct because I can run VPNC on my OG Droid without issues. I'm running CWM7.
Do you have any suggestions?
jamdev12

If tun.ko is build into the system, how do we setup OpenVPN to use tun.ko? How do i tell OpenVPN where the tun.ko file is?
Pls help as im using PRIME 1.8.4.
TIA
JL

[Q] help build cp210x.ko on Iconia A500 3.2.1

Hi,
I really need the cp210x.ko module, but I couldn't successfully build it properly for my Iconia A500 with 3.2.1 and 2.6.36.3+ kernel.. I get the following when I tried insmod my cp210x.ko build using ubuntu cross compiler approach:
cp210x: version magic '2.6.36.3+ preempt mod_unload ARMv5 ' should be '2.6.36.3+ SMP preempt mod_unload ARMv7 '
A little search showed that I need to build it in ARMv7, and need to set the kernel config to build SMP kernel. In this thread I saw a few modules offered but couldn't post reply as a new xda-developers user, so I post here. My A500 has already been rooted via the su (version 3) method posted few days ago.
Please help me build the cp201x.ko module - I am kinda stuck..
Bill

Bill,
Might I suggest you look at loading one of the many custom ROM's that will have what you want? If you are rooted, then install CWM (ACER Recovery from the marketplace) which should allow you to load custom ROM's. In order to load the cp201x.ko module you'd have to recompile the kernel and people doing this type of work normally are building custom ROM's.
Anyway, just my 2¢

Thanks for the advice. I am testing Thor ROM at the moment. Cool..
From what I can read and see within various ROMs /system/lib/modules, very few (out of total possible) kernel modules made it to these custom ROMs - mostly to get game controller to work, extra filesystems, or networking protocols. USB-to-serial modules are rare and certainly my search didn't turn up cp210x.
Cross-compiling the kernel source on Gentoo is mentioned to be better supported then ubuntu, due to its crossdev toolkit, as I'm trying to figure out how to specify target ARMv7 instead of ARMv5 I'm defaulting to when cross compiling from Ubuntu's arm-linux-gnueabi-*
I'm wondering if various nice ROM cooks have releases of their modified kernel source - or might be willing to help me build the just the cp210x as a .ko module, e.g. in the .config, "CONFIG_USB_SERIAL_CP210X=m" - I've found a post few months ago where a successful build and insertion of cp210x module was done but he had some problems when initiating communication on it - I fear the worst but hope for the best, and would like to try that myself as I've successfully talked to my device through the cp210x module on Linux.
Or, if any tips on how to build kernel (just the modules really) properly e.g. As Thor's ROM version number hints at need for some custom and virtualized build environment, I'm looking for the quick and dirty solution if cooking ROMs/kernel/ko's has steep learning curve..
Any help much appreciated!
Bill

It looks like I was speeding down the the wrong track last few days
Apparently the /proc/config.z copied off the a500 device was missing something - and how strange that is - so I had to enable SMP and choose Tegra 2 ARM processor using "make menuconfig" to get the vermagic on the build module (e.g. modinfo after successful make modules) to show ARMv7 and SMP, build from my Ubuntu cross-compiling setup. I haven't tested this new cp210x.ko on a500 yet (as it's currently running one of the customized ROMs that has different EXTRAVERSION/vermagic to the stock Acer kernel source version 2.6.36.3 that I'm based on.
I think it'd be really wonderful if various Android kernel and kernel module makers release their kernel config, sync'ed to each ROM or kernel release, so people like me may independently build special purpose kernel modules with more efficiency and accuracy (to target their customized kernel), and we can recontribute back to to a growing list of tested and working modules for corresponding devices.
Bill

Hmm... Silly. It looks like Thor's ROM already has cp210x build-in, not as a loadable module but compiled in. My device is reported to attach to ttyUSB0! How nice
Thanks!
Bill

For those who are interested, the cp210x.ko module build using latest mentioned approach, e.g. modified kernel config.z, generate module that appear to insert correctly into lightspeed and taboonay roms (neither has this USB-to-serial module) - with a little modification of the EXTRAVERSION variable in the Makefile.
Bill

CP210x and GT-P7500
Has anyone got CP210x module working with Samsung Tab GT-P7500? My problem is that the connected USB-device doesn't create node dev/ttyUSB*. I have spent lot of time trying to figure this one out.
I have tried 1) Manually compiling the linux kernel that has cp210x support as a module. After compiling the module I tried insmoding the cp210x.ko to a running kernel, but even though it seemed to load and unload all right, it did not give me the wanted results. It does not create device node /dev/ttyUSB*. I have also tried modifying ueventd.rc for adding this row, but I am guessing it is only relevant for permissions after the node is created.
Also 2) loading cyanogenmod 10 (which should have cp210x support) to tablet but it doesnot create the desired /dev/ttyUSB* node. I can see device file under dev/bus/usb/001/ but the node does not exist.
I am going to try making needed files for building custom kernel and inserting to tablet. However, I have 0 experience on this, I think it can be tough one.
Any help would be welcome, thanks.

BT-2000 and OpenVPN Client - missing tun.ko

I work for a company that is going to deploy a bunch of the BT-2000 glasses, and I've hit a wall when trying to implement an OpenVPN based client software, the problem is the stock kernel does not have the tun.ko kernel module built in. I've tried to contact Epson support about this as I know that other 4.0.4 devices did have this built in years ago but they are no help. It seems that I have no access to the kernel sources and no way to even install a custom kernel like I would on a nexus device. Any suggestions?