EXPERT IN MIPI-DSI/DPI/DCS LCD/TSP SINGLE OR DUAL PANEL BRING UP @ ALL LEVELS OF ANDROID STACK. Working for EMBEDDED SOFTWARE LABS. This site is owned by M.PHANI RAJ KIRAN M.Tech INDIA.(c):watisid@rediffmail
URL: www.embeddedsoftwarelabs.com
http://in.linkedin.com/pub/phanirajkiran-mallapuram/63/916/884
Sunday, April 21, 2013
TFTP LCD PANEL STRUCTURE:
Linux 3.5 Drv Arch commits : A best and simple examples for LED , PMIC, backlight , char driver, to start and simple, are integrated.
And a new and most important commit on IOMMU ... gr8
Added Renasas armadillo800eva board support.
iommu/exynos: Add iommu driver for EXYNOS Platforms
This is the System MMU driver and IOMMU API implementation for
EXYNOS SoC platforms. EXYNOS platforms hasmore than 10 System
MMUs dedicated for each multimedia accelerators.
The System MMU driver is already in arc/arm/plat-s5p but it is
moved to drivers/iommu due to Ohad Ben-Cohen gathered IOMMU
drivers there.
Any device driver in EXYNOS platforms that needs to control its
System MMU must call platform_set_sysmmu() to inform System MMU
driver who will control it. platform_set_sysmmu() is defined in
Find the images of Samsung make, Android 4.1.2, JB... adb offline mode in 4.3 is due to non-compatibility of ADB get latest x.x.31 from android.
Check KERNEL VERSION .
To get the Kernel time stamp for the main log or android platform or services running on the system , logcat with some options have to be given. Command as a string : # logcat -v time -f /dev/kmsg | cat /proc/kmsg > /data/klog_plog.txt So here klog_plog.txt is the file which has the platform or main log with kernel time stamp. MADE SYSFS AND PROC FS ENTRIES ON THE LINUX KERNEL FOR THE ANDROID 4.1.2 FOR EMULATOR AND LETS SEE HOW THESE WORKS ON THE DEVICE AND ILL GET BACK AGAIN WITH THE SCREEN SHOTS WITH THE DEVICE , NEXUS S. CLICK ON THE IMAGE TO VIEW THEM ORGINAL SIZE.....
Error Log details and changes: LOGE in JB is ALOGE LOGI in JB is ALOGI
Using dumpsys commands in the Android adb shell
To begin using the following commands, first start a shell with a terminal application or use the adb shell command.
dumpsys gives a wealth of information about the applications on the phone, and the current state of the phone. Without any subcommand, it gives you everything.
dumpsys meminfo displays memory usage
dumpsys cpuinfo displays processor usage
dumpsys account displays information on all accounts
dumpsys activity displays information about activities
dumpsys window displays information about keyboards, windows and their z order
dumpsys wifi shows information about available access points and current connection
I just realized that the quick way to see all of the "subcommands" of dumpsys is to do:
dumpsys | grep DUMP
The following commands can be found in the folder "/system/bin/ on Nexus .
Commands
Desc.
adb
Android Debug Bridge
am
Activity Manager
app_process
Execute a runtime environment for a dalvik class/Jar file.
applypatch
Apply patches to android files.
usage: applypatch [: ...] or applypatch -c [ ...] or applypatch -s or applypatch -l
Filenames may be of the form MTD::::::... to specify reading from or writing to an MTD partition.
atrace
Trace information captured in the folder of /sys/kernel/debug/tracing/
usage: atrace [options]. Measure the system performance and do the analysis. Systrace tool provides more parameters to measure the performance than atrace.
options include:
-b N use a trace buffer size of N KB
-c trace into a circular buffer
-d trace disk I/O
-f trace CPU frequency changes
-l trace CPU frequency governor load
-s trace the kernel scheduler switches
-t N trace for N seconds [defualt 5]
-w trace the kernel workqueue
-z compress the trace dump
bluetoothd
Bluetooth Debuging Utility
Usage:
bluetoothd [OPTION...]
Help Options:
-?, --help Show help options
Application Options:
-d, --debug=DEBUG Specify debug options to enable
-p, --plugin=NAME,.., Specify plugins to load
-P, --noplugin=NAME,... Specify plugins not to load
-n, --nodetach Don't run as daemon in background
-v, --version Show version information and exit
-u, --udev Run from udev mode of operation
bmgr
bmgr is a shell tool you can use to interact with the Backup Manager on Android devices.
usage: bmgr [backup|restore|list|transport|run]
bmgr backup PACKAGE
bmgr enable BOOL
bmgr enabled
bmgr list transports
bmgr list sets
bmgr transport WHICH
bmgr restore TOKEN
bmgr restore TOKEN PACKAGE...
bmgr restore PACKAGE
bmgr run
bmgr wipe PACKAGE
bootanimation
Show the boot animation.
brcm_patchram_plus
This program downloads a patchram files in the HCD format to Broadcom Bluetooth based silicon and combo chips and and other utility functions.
It can be invoked from the command line in the form
<-d> to print a debug log <--patchram patchram_file="patchram_file"> <--baudrate baud_rate="baud_rate"> <--bd_addr bd_address="bd_address"> <--enable_lpm> <--enable_hci> uart_device_name
btmacreader
Bluetooth MAC Reader.
bu
Backup
Options:
-apk, Save APK
-noapk, Save no APK
-shared, Save Shared
-noshared, Save no Shared
-system, All Includes System
-nosystem, Not all Includes System
-all, Everything
bugmailer.sh
Send Bug Report to Vendor.
bugreport
Export all the debug message from Android and Linux layer.
cat -> toolbox
Concatenate, a tool to print out the content of a file continually. It's the same usage with Linux.
chmod -> toolbox
Change the mode of file. Usage is the same with Linux.
chown -> toolbox
Change the owner of a file/folder. Usage is the same with Linux.
cmp -> toolbox
Compare the file. Usage is the same with Linux.
content
Perform operations on particular content
usage: adb shell content [subcommand] [options]
usage: adb shell content insert --uri --bind [--bind ...] a content provider URI. binds a typed value to a column and is formatted: :: where: specifies data type such as: b - boolean, s - string, i - integer, l - long, f - float, d - double Note: Omit the value for passing an empty string, e.g column:s: Example: # Add "new_setting" secure setting with value "new_value". adb shell content insert --uri content://settings/secure --bind name:s:new_setting --bind value:s:new_value
usage: adb shell content update --uri [--where ] is a SQL style where clause in quotes (You have to escape single quotes - see example below). Example: # Change "new_setting" secure setting to "newer_value". adb shell content update --uri content://settings/secure --bind value:s:newer_value --where "name='new_setting'"
usage: adb shell content query --uri [--projection ] [--where ] [--sort ] is a list of colon separated column names and is formatted: [:...] is the order in which rows in the result should be sorted. Example: # Select "name" and "value" columns from secure settings where "name" is equal to "new_setting" and sort the result by name in ascending order. adb shell content query --uri content://settings/secure --projection name:value --where "name='new_setting'" --sort "name ASC"
dalvikvm
Launch the Dalvik VM to run a Java class in DEX format.
dalvikvm: [options] class [argument ...]
dalvikvm: [options] -jar file.jar [argument ...]
The following standard options are recognized:
-classpath classpath
-Dproperty=value
-verbose:tag ('gc', 'jni', or 'class')
-ea[:... |:] -da[:... |:] (-enableassertions, -disableassertions) -esa -dsa (-enablesystemassertions, -disablesystemassertions) -showversion -help
The following extended options are recognized: -Xrunjdwp: -Xbootclasspath:bootclasspath -Xcheck:tag (e.g. 'jni') -XmsN (min heap, must be multiple of 1K, >= 1MB) -XmxN (max heap, must be multiple of 1K, >= 2MB) -XssN (stack size, >= 1KB, <= 256KB) -Xverify:{none,remote,all} -Xrs -Xint (extended to accept ':portable', ':fast' and ':jit')
These are unique to Dalvik: -Xzygote -Xdexopt:{none,verified,all,full} -Xnoquithandler -Xjnigreflimit:N (must be multiple of 100, >= 200) -Xjniopts:{warnonly,forcecopy} -Xjnitrace:substring (eg NativeClass or nativeMethod) -Xstacktracefile: -Xgc:[no]precise -Xgc:[no]preverify -Xgc:[no]postverify -Xgc:[no]concurrent -Xgc:[no]verifycardtable -XX:+DisableExplicitGC -X[no]genregmap -Xverifyopt:[no]checkmon -Xcheckdexsum -Xincludeselectedop -Xjitop:hexopvalue[-endvalue][,hexopvalue[-endvalue]]* -Xincludeselectedmethod -Xjitthreshold:decimalvalue -Xjitblocking -Xjitmethod:signature[,signature]* (eg Ljava/lang/String\;replace) -Xjitcheckcg -Xjitverbose -Xjitprofile -Xjitdisableopt -Xjitsuspendpoll
Dump system status
usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s]
-o: write to file (instead of stdout)
-d: append date to filename (requires -o)
-z: gzip output (requires -o)
-p: capture screenshot to filename.png (requires -o)
-s: write output to control socket (for init)
-b: play sound file instead of vibrate, at beginning of job
-e: play sound file instead of vibrate, at end of job
dumpsys
Dump functional state
dumpsys [options]
Execute dumpsys will output all the message in case there's no option specified.
option: accessibility account activity alarm appwidget audio backup battery batteryinfo bluetooth bluetooth_a2dp clipboard commontime_management connectivity content country_detector cpuinfo dbinfo device_policy devicestoragemonitor diskstats drm.drmManager dropbox entropy gfxinfo hardware input input_method iphonesubinfo isms location lock_settings media.audio_flinger media.audio_policy media.camera media.player meminfo mount netpolicy netstats network_management nfc notification package permission phone power samplingprofiler scheduling_policy search sensorservice serial servicediscovery simphonebook sip statusbar SurfaceFlinger telephony.registry textservices throttle uimode updatelock usagestats usb vibrator wallpaper wifi wifip2p window
getevent -> toolbox
The getevent tool runs on the device and provides information about input devices and a live dump of kernel input events.
Usage: getevent [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r]
[device]
-t: show time stamps
-n: don't print newlines
-s: print switch states for given bits
-S: print all switch states
-v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32, props=64)
-d: show HID descriptor, if available
-p: show possible events (errs, dev, name, pos. events)
-i: show all device info and possible events
-l: label event types and names in plain text
-q: quiet (clear verbosity mask)
-c: print given number of events then exit
-r: print rate events are received
http://source.android.com/tech/input/getevent.html
getprop -> toolbox
List some property of Android
hd -> toolbox
To sum up each character in specified file and result the summation.
To do hd command repeatedly and to set delay interval between each execution if -r is designated.
Usage: hd [-b base] [-c count] [-r delay] file
id -> toolbox
Print uid, gid, and context
ifconfig -> toolbox
TCP/IP command. Assign an address to a network interface and/or configure network interface parameters. ifconfig is typically used at boot time to define the network address of each interface on a machine.
iftop -> toolbox
Show the packet flow for each network interface
Usage: iftop [ -r repeats] [ -d delay ]
input
Send string or key event to device
usage: input [text|keyevent]
input text input keyevent
insmod -> toolbox
Load a module into the kernel at runtime. The module cannot be used after reboot.
Usage: insmod
ioctl -> toolbox
IO Control Command between Up and lower layer.
ioctl [-l ] [-a ] [-rdh] -l Length of io buffer -a Size of each argument (1-8) -r Open device in read only mode -d Direct argument (no iobuffer) -h Print help
ionice -> toolbox
Configure the Process.
Usage: ionice [none|rt|be|idle] [prio]
Create pseudonyms (links) for files, allowing them to be accessed by different names.
ln [-s]
log -> toolbox
Display specified log information.
USAGE: log [-p priorityChar] [-t tag] message
priorityChar should be one of:
v,d,i,w,e
logcat
Real time Log for all application running on Android System.
options include:
-s Set default filter to silent.
Like specifying filterspec '*:s'
-f Log to file. Default to stdout -r [] Rotate log every kbytes. (16 if unspecified). Requires -f -n Sets max number of rotated logs to , default 4 -v Sets the log print format, where is one of:
brief process tag thread raw time threadtime long
-c clear (flush) the entire log and exit -d dump the log and then exit (don't block) -t print only the most recent lines (implies -d) -g get the size of the log's ring buffer and exit -b Request alternate ring buffer, 'main', 'system', 'radio' or 'events'. Multiple -b parameters are allowed and the results are interleaved. The default is -b main -b system. -B output the log in binary filterspecs are a series of [:priority]
where is a log component tag (or * for all) and priority is: V Verbose D Debug I Info W Warn E Error F Fatal S Silent (supress all output)
'*' means '*:d' and by itself means :v
If not specified on the commandline, filterspec is set from ANDROID_LOG_TAGS. If no filterspec is found, filter defaults to '*:I'
If not specified with -v, format is set from ANDROID_PRINTF_LOG or defaults to "brief"
ls -> toolbox
List the file and directory at current or specified path.
Usage: ls -l: LIST_LONG; break;
-n:LIST_LONG | LIST_LONG_NUMERIC; break;
-s: LIST_SIZE; break;
-R:LIST_RECURSIVE; break;
-d: LIST_DIRECTORIES; break;
-Z: LIST_MACLABEL; break;
-a: LIST_ALL; break;
-F: LIST_CLASSIFY; break;
lsmod -> toolbox
List the module in Android device.
lsof -> toolbox
List information in /Proc folder which contains all the process information.
md5 -> toolbox
MD5 encription tool
mkdir -> toolbox
Create a folder.
monkey
A automation stress test tool which generates random event for Android device.
mount -> toolbox
Mount a file structure.
Usage: mount [-r] [-w] [-o options] [-t type] device directory
mv -> toolbox
Remove a file.
USAGE: mv
nandread -> toolbox
nandread [-d ] [-f file] [-s sparesize] [-vh] -d Read from -f Write to -s Number of spare bytes in file (default 64) -R Raw mode -S Start offset (default 0) -L Length (default 0) -v Print info -h Print help
New a file System with specified format
usage: newfs_msdos [ -options ] special [disktype]
where the options are:
-@ create file system at specified offset
-B get bootstrap from file
-C create image file with specified size
-F FAT type (12, 16, or 32)
-I volume ID
-L volume label
-N don't create file system: just print out parameters
-O OEM string
-S bytes/sector
-a sectors/FAT
-b block size
-c sectors/cluster
-e root directory entries
-f standard format
-h drive heads
-i file system info sector
-k backup boot sector
-m media descriptor
-n number of FATs
-o hidden sectors
-r reserved sectors
-s file system size (sectors)
-u sectors/track
ping
Check if the specified host address is online.
pm
Package Manager for running Dalvik Class file.
printenv -> toolbox
Print Environment Variables and their Values for Android Device
ps -> toolbox
Print the running process with its state.
Usage: ps [options]
-t Show threads
-x Show time
-Z Show MAC Label
-P Show Policy
-p Show Priority
-c Show CPU
reboot -> toolbox
Reboot Android Device
renice -> toolbox
Change the priority of a process.
USAGE: renice [[-r] priority pids ...] [-g pid]
rm -> toolbox
Remove a file or folder.
Usage: rm file_name or rm -r folder_name
Output Android screen
usage: screencap [-hp] [FILENAME]
-h: this message
-p: save the file as a png.
If FILENAME ends with .png it will be saved as a png.
If FILENAME is not given, the results will be printed to stdout.
screenshot
Output Android screen
usage: screenshot [-s soundfile] filename.png
-s: play a sound effect to signal success
-i: autoincrement to avoid overwriting filename.png
sendevent -> toolbox
Send a event trigger to specified device with type, code, and value. E.g. Touch, or Key.
Usage: sendevent [device] [type] [code] [value].
service
Service operation
Usage: service [-h|-?]
service list
service check SERVICE
service call SERVICE CODE [i32 INT | s16 STR] ...
Options:
i32: Write the integer INT into the send parcel.
s16: Write the UTF-16 string STR into the send parcel.
setconsole -> toolbox
setconsole [-d ] [-v ] [-gtncpoh] -d Use instead of /dev/tty0 -v Switch to virtual console -g Switch to graphics mode -t Switch to text mode -n Create and switch to new virtual console -c Close unused virtual consoles -p Print new virtual console -o Print old virtual console -h Print help
setprop -> toolbox
Set the Android property.
Usage: setprop
sh -> mksh
Execute a shell script.
sleep -> toolbox
Interval of next action/command (seconds)
start -> toolbox
Start a specified service
stop -> toolbox
Stop a specified service
sync -> toolbox
Copy host->device only if changed. adb sync is a tool which may be used to copy files from the computer to the device if the files has been changed. By default the command will synchronize /data and /system unless one option is specified. For the command to operate properly a system variable must be created and defined. ANDROID_PRODUCT_OUT must designate the full actual path to the directory containing a file structure with system and/or data subfolders containing the files and folders changed.
Usage: sync [ ]
toolbox
Check if the specified command existed.
Usage: toolbox command_name
top -> toolbox
Display usage of thread or process.
Usage: top [ -m max_procs ] [ -n iterations ] [ -d delay ] [ -s sort_column ] [ -t ] [ -h ]
-m num Maximum number of processes to display.
-n num Updates to show before exiting.
-d num Seconds to wait between updates.
-s col Column to sort by (cpu,vss,rss,thr).
-t Show threads instead of processes.
-h Display this help screen.
umount -> toolbox
Unmount the device
Usage: umount device_path
uptime -> toolbox
The up time since last boot. The information includes up, idle, and sleep time.
vmstat -> toolbox
Virtual Meomory Statistics
Usage: vmstat [ -h ] [ -n iterations ] [ -d delay ] [ -r header_repeat ]
-n iterations How many rows of data to print.
-d delay How long to sleep between rows.
-r header_repeat How many rows to print before repeating
the header. Zero means never repeat.
-h Displays this help screen.
vold
Manage the device on Android. The function is similar with udev in Linux.
watchprops -> toolbox
Monitor the change of property and list them. The properties can be viewed by executing getprop and set by executing setprop.
wipe -> toolbox
Erase the system or data
Usage: wipe system means '/system' data means '/data'
drivers: nl80211 = Linux nl80211/cfg80211 options: -b = optional bridge interface name -B = run daemon in the background -c = Configuration file -C = ctrl_interface parameter (only used if -c is not) -i = interface name -d = increase debugging verbosity (-dd even more) -D = driver name (can be multiple drivers: nl80211,wext) -e = entropy file -g = global ctrl_interface -K = include keys (passwords, etc.) in debug output -t = include timestamp in debug messages -h = show this help text -L = show license (GPL and BSD) -o = override driver parameter for new interfaces -O = override ctrl_interface parameter for new interfaces -p = driver parameters -P = PID file -q = decrease debugging verbosity (-qq even less) -v = show version -W = wait for a control interface monitor before starting -N = start describing new interface example: wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf
