vishal.soni's blog

toolchain

Submitted by vishal.soni
on May 9, 2006 - 9:54pm

http://kegel.com/crosstool/

http://www.libsdl.org/pipermail/sdl/2003-April/053501.html
http://www.linux-mips.org/wiki/Toolchains#Pre-built.2FBuild_Kits

AM_PATH_SDL not found in library.
locate sdl.m4
[embedded@testpc code]# export ACLOCAL_FLAGS="-I /usr/share/aclocal"

One week left

Submitted by vishal.soni
on August 29, 2005 - 11:15pm

Today is tuesday, 30th Aug, 2005 .. next tuesday i would be leaving korea :) ......
hmmmmmmmm this was long three months.... Wrapping the work.
Next tuesday's dinner wud be in India.. VOILLAAA :) :)

Configuring 3com Wireless USB WiFi Dongle on Linux (This Works)

Submitted by vishal.soni
on July 21, 2005 - 11:36pm

if anyone has reached here searching for technical stuff then the info, which i would like to give.. is..

summary (as the scribblings, below the summary is just for my reference )
~~~~~~~~
1. lwan-linux driver did not work for my 3com Office Connect USB dongle.
2. the 3com driver worked(the link is given below in this webpage).... but one has to edit the makefile. for giving the right KERNEL SOURCE PATH and the compiler, which one is using.

Configuring 3com Wireless USB WiFi Dongle on Linux

Submitted by vishal.soni
on July 21, 2005 - 11:09pm

Well there are couple of drivers available on the net as on 22nd July, 2005 to configure Wireless Wifi USB dongles. With pcmci cards things r easy to make them work.. but USB dongle drivers are still on development phase.

After googling nd studing abt the card specifications and all, i downloaded linux-wlan-ng-0.2.1-pre26
ftp://ftp.linux-wlan.org/pub/linux-wlan-ng/
I was making it work on MIPS board with Au1200 chipset and after setting toolchain for mips, i was making the driver to compile & work.

Returning after a long time

Submitted by vishal.soni
on July 21, 2005 - 10:40pm

Yeaaaah..... was very much busy with the work.. cud not post anything... nd how the last couple of weeks have passed....... i have no idea :)
All i remember is .. i was doing
Some coding.. some researching.... testing... evenings chatting with my gal on yahoo..
Well i should create some technical blogs now..
cud not find anything on google this... time..
so may be this helps some one.

Mon(Third week-Fourth week)

Submitted by vishal.soni
on June 20, 2005 - 2:56am

What a beautiful start of the week after an awesome weekend. :)
Me getting Monday blues.
Reading the MIPS Instruction set.. and trying to configure.. nd write the bootloader for the reference board.

Nd yeah we were supposed to move to a new division/department.. The team managed to get two trolleys.. we packed the PCs.. nd here we go.. to another dev.
The old one was better and more comfi.. :(

second week

Submitted by vishal.soni
on June 14, 2005 - 6:24pm

I should be doing system level programming, thats what i thought and came to korea....and yeah.. i guess i would be !!
The guy with whom i am working just happens to be one of the best guys of our linux world.
Voillaaa.. have nothing much to say... he is awesomely awesome.. & i wud be working on embedded linux.. not bad haan!! :)

Having a gud time with other SISC buddies out here, who were here .. for other project requirements...

Life Continues.......(first week)

Submitted by vishal.soni
on June 12, 2005 - 8:21pm

08-06-05
Yup all set for the first day.. to Head Quarters...
I guess.. Our Samsung's HQ is the Best place.. i have been to :)

Had some meetings.. formal talks...Got to know the work.... nd here we start...

Lunch time.. My korean project mates... orders Pizza for us :) ..
they were concerned abt the food, which we gonna have nd really made us feel gud..
Koreans are gud caring people... cud feel a sense of respect in their mind..

..............................................

Submitted by vishal.soni
on June 9, 2005 - 9:34pm

wud b away frm hometown for next three months or so...going2korea............

Things go with Speed of Light !!

Submitted by vishal.soni
on June 2, 2005 - 1:26pm

Oops.. things change/move so fast.
My project got changed... nd here i am with tickets in my hand..gotta go to korea(Seoul)
Hell lotsaa packing... shifting.. moving....Somtimes.. i really need 48 hours in a day !!
Wud go home this friday night ... may be some shopping on saturday ...
Hope to get one congregation on... Saturday night... it seems mom has collected all the info with timings !! No more in Noida.. after this sunday !!

Associating driver to the existing device

Submitted by vishal.soni
on May 30, 2005 - 1:45am

I am trying to associate a driver to the '/dev/mem' device (the major no. and minor no. of device is 1,1.)

[vishal@vishalsoni ~]$ ll /dev/mem
crw-r----- 1 root kmem 1, 1 May 30 2005 /dev/mem

so that any read/write/mmap happening to this device.. gives control to my driver.
I am able to Successfully register the device ( dmesg tells this) & below is the code for kernel 1.6 driver.

[vishal@vishalsoni ~]$ uname -a

looooooooooooooooong breakkkkkkkkkkkkk

Submitted by vishal.soni
on May 19, 2005 - 1:43am

I guess, me back to work after a long break.... May be it will take some more time to get back on track.. to get over the worthless Hangovers......Took couple of weeks of mine....... Ooooops ..........

Finally sorted out the requirements........ & here i am listening number of Guns N' Roses, November Rain........trying to put all that it takes to write a skull driver...... nd hook the memory device.

Error while reading shared library symbols in Kernel

Submitted by vishal.soni
on May 2, 2005 - 7:33pm

Was remotely debugging 2.6.8 kernel with the gdbmod available at
http://kgdb.linsyssoft.com/getting.htm.

Below are the steps...
1. I compiled the kernel source tree after applying the kgdb patch in TEST
machine,
2. Transferred the whole kernelsourcetree from /usr/src/ of TEST machine along
with object files to my Development machine
3. Transferred the modules from /lib/modules/2.6.8, modules from TEST machine

Linux Display System vesafb: probe of vesafb0 failed with error -6

Submitted by vishal.soni
on April 27, 2005 - 12:52pm

I got to study Frame Buffer System of Linux 2.6.8 kernel so that i understand Linux Display System.
I am kindaa trying to find the kernel functions which are actually resposible for drawing on the screen....

So i compiled the option thru make menuconfig
Device Drivers-------------> Graphics Support ----------> Virtual Frame Buffer Support.

The description of the same is

This is a `virtual' frame buffer device. It operates on a chunk of │

2.6.8 kernel and me both Rocking :)

Submitted by vishal.soni
on April 26, 2005 - 5:15am

A job for debugging kernel 2.6.8

Got source code of 2.6.7
patched with kgdb patch/ patched with kernel patch of 2.6.8.
After some glitches , here & there............ compiled the kernel succesfully :)

and got landed in issue with LVM.......

/dev/mapper/control : open failed : No such file or directory .
Is device mapper mapped to kernel ? "

and i get kernel panic..........
lil Theory of LVM ... http://www.tldp.org/HOWTO/LVM-HOWTO/whatisvolman.html