How to disable Android camera device by using bus id? - Android Q&A, Help & Troubleshooting

While looking at /system/lib/modules I could not find a kernel module for the camera of my device. Although even if I were to find it, modprobe doesn't exist in my system for which I would not be able to disable it.
When I look at the directory /sys/bus/media/devices I get the following output:
Code:
/sys/bus/media/devices/media0
/sys/bus/media/devices/media1
/sys/bus/media/devices/media2
/sys/bus/media/devices/media3
All symbolic links to ../../../devices/soc/... For example, media0 is a symbolic link to
/sys/devices/soc/1b0c000.qcom,cci/1b0c000.qcom,cci:qcom,[email protected]
Inside that directory is a driver directory which has an unbind file . According to [link posting not allowed to new users], I should be able to unbind the driver from the device. However, I don't know how to find the bus id of the device.
How can I find the bus id to disable the device? And after found, would the echo to the unbind file do the desired action?

Related

Optware for Android released by Novaports

Optware was originally developed as a distribution mechanism for software for the Open Source Linux project for the Linksys NSLU2 (a small low cost network storage device). That consumer storage device ran on Linux, and the community opened it up, but they needed a lightweight distribution mechanism for their lightweight devices.
Since 2004 Optware has been adopted by a variety of Linux communities and device developers including the webOS community working on the Palm Pre and Pixi, and developers for devices as diverse as Asus WL-500g,WL-HDD, WL-500gx, WL-500gP routers, the Synology DS-101 and DS-101g+ NAS devices.
At its core, Optware is a package manager to allow you to easly install and uninstall cross-compiled linux applications on your device over the internet. At this time, optware supports the automatic download and installation of over 1500 programs. (See the list at the end of the wiki article.)
Why should I use Optware?
Like the original slug, android devices lack a distribution mechanism to install Linux/command line tools programs and utilities. Many in the Android community who want or need to do command line processing on their device use a chroot of some sort (Debian seems popular) to get their distribution and package management tools. With Optware, it becomes possible to simply run whatever utility or program you want on the native underlying Linux.
Additionally, Optware For Android installs openSSH making it possible to access your Nook from any PC with SSH capability, and sets up an unprivileged username/password login system for the device at the command line. All in all then, since it can be installed with a single script, since it's lightweight, and since it's designed for small and embedded devices, Optware is a perfect fit for the Android community.
Optware for Nook is the first Optware for Android release by the Novaports team and is their gift to the Android community members who have helped them so much with information on Android devices.
What does it do?
The Optware bootstrap installed the IPKG package manager. It installs the optware Busybox. It installs openSSH and makes the ssh demon persistent. It creates an unprivileged user with a username and password you choose.
See Installation instructions and details at the Optware for Android page at Nookdevs.com
For completeness of licensing compliance, the source code for all optware package can be found at the following locations:
1) build scripts at svn.nslu2-linux.org in the /svnroot/optware/ area
2) tarballs at sources.nslu2-linux.org in the /sources area (this is a *large* directory)
To contribute code to Optware, see www . nslu2-linux . org in the /wiki/Optware/AddAPackageToOptware area
-- Rod Whitby
-- Original NSLU2-Linux Project Lead and Optware Architect
This works beautifully! Thank you!
Gonna try this and see if i can get samba to work.. a SMB mount over wifi would be awsome...
Many thanks!
I don't suppose there's a quick and easy way to completely remove optware?... not looking forward to culling through scripts and manually un-doing it all.....
adduser: not found
When it gets to the part in the install script to add the username of the unprivileged user, I enter a name, then it says: adduser: not found.
If it helps, I am using Rooted Stock 1.1.
Anyone get Optware to install on CM7 (newer nightly)
I am running CM7 #103 and would love to have optware installed.
But I get Fail if I try to use the method from Nookdevs
Tonight when I have more time I will look at the errors and see if I can tell what is up.
It looked like partially due to missing dir's for one (/tmp)
madrascafe said:
Gonna try this and see if i can get samba to work.. a SMB mount over wifi would be awsome...
Click to expand...
Click to collapse
The market has your answer and it's free:
https://market.android.com/details?id=com.funkyfresh.samba&feature=search_result
Am I the only one that wants Optware on CM7?
It goes fine on a manualnootered 1.2.0 NC But I prefer CM7 (And use the nightlies)
I would love to get this going on my NC as well. Running CM7 N121 w/ 6/30/2011 OC kernel. Was able to manually work past the tmp directory problem you mentioned, but I can't seem to execute the ipkg binary or installed. I've verified it indeed exists in the path I'm trying to execute it from, it has +x perms for user/ group/ other, but it always gives the error below:
/data/opt/bin/ipkg: not found
I've tried messing with bin directory and ipkg binary ownership, but no dice. If anything it should at least find it even if permissions aren't correct.
Looks like the contents of the binary reference ELF libraries which sounds like an issue attempting to execute in an Android environment. Going to see if I can chroot an environment that will work for it.
Sent from my NookColor using Tapatalk
This is happening because it's looking for /lib/ld-linux.so.3, and not finding it. I worked around by
ln -s /data/opt/lib/ld-linux.so.3 /lib/ld-linux.so.3
I also had to make these links:
ln -s /data/opt /opt
ln -s /data/tmp /tmp
And then set this:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib
export PATH=$PATH:/opt/bin/:/opt/sbin
in my bash profile to get things to start working.
One problem is my symlinks seem to get erased every reboot. I worked around by re-creating them in my bash profile, but I wish I knew how to make them permanent. This may be a ROM specific thing - this was written for a rooted stock nook, and I'm on an Epic running SFR.
I do not have a ld-linux.so.3 file on my NC w/ CM7 125
I have many other errors that show up:
Downloading the latest ipkg-opt package from the Optware package feed:
Connecting to ipkg.nslu2-linux.org (140.211.169.161:80)
wget: can't open 'ipkg-opt_0.99.163-10_arm.ipk': File exists
(NOTE the above file 'ipkg-opt_0.99.163-10_arm.ipk' does not exist
(on my NC - from a find / -name ipkg-opt_0.99.163-10_arm.ipk)
Updating the Optware package database:
ERROR: Failed to update the local Optware package database
Updating the Optware package database:
/data/optware-bootstrap-0.0.1.shar: ipkg-opt: not found
ERROR: Failed to update the local Optware package database
Any ideas?
The actual file it needs is /data/opt/lib/ld-linux.so.3 - you need to create a symlink in /lib in order to see it. But I think that file comes from the optware installer - if the installer is failing, you won't have it there either. It sounds like you may have bits of a previous install that failed, and it's preventing the install from running properly. Try looking at the log in /data/tmp for more info. After that, try rm -rf /data/tmp/* to clean up the old install and trying again.
Thank You for any pointers.
I deleted everything in /data/tmp first last attempt - like you suggested.
Same result
I have it down to only this error now when I run it (optware-bootstrap-0.0.1.shar):
Updating the Optware package database:
optware-bootstrap-0.0.1.shar: ipkg-opt: not found
ERROR: Failed to update the local Optware package database
ipkg-opt should be in /data/opt/bin. Check to see if it's there... if not, something went wrong in one of the previous steps - probably somewhere around "Downloading the latest ipkg-opt package from the Optware package feed". See if wget is actually downloading anything, where it's putting it, and what it's doing with it afterwards.
If it is there, try running it manually. If you see /data/opt/bin/ipkg or /data/opt/bin/ipkg-opt but it claims it's not there when you run it, it may be a library linking error. Mine was looking for /lib/ld-linux.so.3 but it was actually installed at /data/opt/lib/ld-linux.so.3. mount -o remount,rw followed by ln -s /data/opt/lib/ld-linux.so.3 /lib/ld-linux.so.3 fixed that. I also had to run
ln -s /data/opt /opt
ln -s /data/tmp /tmp
before things started working.
By the way:
ntfsprogs - NTFS filesystem libraries and utilities
Could that be of any use? At the moment, it's not possible to mount NTFS storage on the NC
i would love to know how you guys get to this point even. When i try to install the very fist line of the script is an error and then nothing at all happens .... something about not finding busybox or something of that nature.
So you guys are getting WAY farther than I've been able to.
Tkx Tonygoes.
It is there in /data/opt/bin but it reports /data/opt/bin/ipkg: not found
I cannot find a ld-linux.so.3 on my NC at all.
I did the other links et al fro your comments also
obsid:
Try post 12 above:
and I had some other suggestions from someone:
might try thses FIRST the script seems to do it but may not actually get it done.
mount -o remount,rw / /
mount -o remount,rw /dev/block/mmcblk0p5 /system
you should also if tried before do this: rm -rf /data/tmp/
then do the items in post #12 above
NOTE for me the ln -s to ld-linux.so.3 does not work as I do not have that file on my system

Problems with Transparent Proxy.

Hi, i have a folio 100 rooted with SuperOneClick, but when i try to connect me to a proxy with Transparent Proxy it says:
failed to start redirect.sh
permission denied
i find a solution and now i have root access with the app, but when I try to turn the proxy on, I get this error:
"Failed to start redirect.sh (FIX ME! implement
getprotobyname() bionic/libc/bionic/stubs.c:378
iptabels v1.3.7: can't initialize iptables table 'nat':iptables
who? (do you need to insmod?)
Perhaps iptables or your kernel need to be upgraded"
the message repeats.
Nobody has a solution?
gilms said:
Nobody has a solution?
Click to expand...
Click to collapse
I don't have a 'solution' but you can diagnose the problem more easily if you have the file /proc/config.gz on your device... copy it off and unzip, open and look for:
Code:
#
# IP: Netfilter Configuration
#
These are the ones that probably matter?
Code:
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REDIRECT=y
I have a lot more set to =y on my device (Atrix)
You probably also need to have the 'iptables' binary in /sbin
You'd probably do best to start from a newer kernel that some dev modded for your device, and already enabled netfilter... then all you need is iptables

Separated adb and fastboot from android 4.2

The repo address:
github /louiskoo/adb​github /louiskoo/fastboot-separated_from_android_4.2​
I have also modified the original source code of adb for several problems under here:
1. Google seems like only support authorized manufacturer via adb tool which results to the disconnection between other devices and adb tool. Although we can modify some rules file to get the support, but it's better to modify the source code of adb to get rid of the boresome rules.​2. AS we all known, adb distinguish one device from another via serialNumber of the device. But sometimes, we find out the fact that the two or all of devices we have own the same serialNumber which make the result that it get stucked. I modified the transport register function to solve this problem and the adb tool distinguish devices via combined busNumber and deviceAddress.​3. I also modified the install function to increasing the speed for apks installation. The param of apk path had been changed to directory path in which all apks exist. I created a pthread to sync the next apk file in the directory while the pm in installing the previous one so that we can save the transfor time.​
I'm so sorry that I'm a newer so that I cann't post outside links here!!

adb shell in recovery: 'pm list packages' fails from console

I wasn't paying attention to what I was doing after updating some apps, and froze some some application that is necessary, now my CATS60 will not boot. The app likely just uses the disable or hide command, but I am not sure what I misclicked, so I need to get a list or currently disabled apps or reenable all apps. I entered TWRP recovery, mounted all partitions, and connected through ADB shell.
This is what I get when I try to find out what's enabled/disabled:
Code:
# pm list packages
CANNOT LINK EXECUTABLE: library "libqc-opt.so" not found
page record for 0x7fb1658010 was not found (block_size=64)
adbd is running as root, and the file does exist:
Code:
~ # find / -name 'libqc-opt.so'
/system/vendor/lib/libqc-opt.so
/system/vendor/lib64/libqc-opt.so
I am using TWRP as recovery, and recovering system, data, and boot from backup does not fix this.
Does anyone know either
How can I make pm command work from recovery?
Where is the list of disabled apps stored, so I can manually edit it?
Thank you.
I found the list as used by the app (com.ramdroid.appquarantine), and it appears I blocked Google Calendar. However I have not found any way to "unfreeze" the app through recovery, this is simply a tracking file the app uses, not the actual enable/disable for Google Calendar.
Setting PATH and LD_LIBRARY_PATH environment variables does not help. Running it from inside the folder containing libqc-opt.so causes it to fail on a different external link.
Copying it to a second file called pm2, opening in vi and adding exports gets me as far as:
Code:
CANNOT LINK EXECUTABLE: cannot locate symbol "__android_log_close" referenced by "/system/lib64/libandroid_runtime.so"
Is it possible to chroot inside adb, and what do I need to mount first in order to do so? I don't know enough about Android to know which parts of the system I actually need.

Dsploit showing Ld_library_path bug

My device is rooted but every time I tried to open dsploit apps its showing this massage that " It seems like your rom has LD_library_path bug , I am sorry but this is not compatible with dsploit" . Please any one help me to slove this problem
If device basically runs error free, will say you can run any other apps successfully, then Android's LD_LIBRARY_PATH system variable - what is comparable to PATH system variable in Windows OS - is NOT wrongly set.
In your case it seems to me the app in question doesn't serach for used shared libraries in Android's default LD_LIBRARY_PATH, what may be due to an Android ABI mismatch.
FYI:
LD_LIBRARY_PATH tells the dynamic link loader (ld. so– this little program that starts all your applications) where to search for the dynamic shared libraries an application was linked against. Multiple directories can be listed, separated by a colon ), and this list is then searched before the compiled-in search path(s), and the standard locations (typically /lib, /lib64, /usr/lib, …).
You can query content of LD_LIBRARY_PATH variable
Code:
adb devices
adb shell 'echo "$LD_LIBRARY_PATH"'

Categories

Resources