Hi!
On 18:56 Fri 24 Sep , Sri Ram Vemulpali wrote:
Hi all,
I am encountering alot macros in the code. I did not understand what
those macro means.
Can anyone explain them and the use of them putting them like that.
unlikely
likely() and unlikely() are wrappers around gcc
On Fri, Sep 24, 2010 at 10:51 PM, Mulyadi Santosa mulyadi.sant...@gmail.com
wrote:
When a senior member like Greg Freemyer respond like that, it must be
Rather than giving me lecture here show me how this error can be fixed and
let him prove if he deserves respect I do not have any problem in
On Fri, Sep 24, 2010 at 5:41 PM, sri bskmo...@gmail.com wrote:
what part is not able to understand?
Here is a program I wrote
but it is dropping characters though I gave 14 bytes to kmalloc and buffer
but still the program is unable to read and write as I expect it to do.
I did an strace on
On Sat, Sep 25, 2010 at 8:36 PM, ptchinster ptchins...@archlinux.us wrote:
Yup. Thank you for placing where i got it, i didn't save info when i
saved this source.
It didn't even compiled on my machine.
running an strace on the program gave me
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2a2f03b000
write(1, abcde, 5)= 1
write(1, bcde, 4) = 1
write(1, cde, 3) = 1
write(1, de, 2) = 1
Since you people think me to be a newbie or moron or some thing like copy
pasting the code so I am explaining each and every line of it what it is
doing but still lectures are lectures and funda's don't work show me real
thing or else do not reply.
#include linux/init.h
#include linux/module.h
hello guys,
are there any gains ( in terms of security or anything else) to flush the
buffer in kernel printk() as soon as \n is encountred ?
i am asking because this does not happen in the user space as all of us
know.
On Sat, Sep 25, 2010 at 9:15 AM, mohit verma mohit89m...@gmail.com wrote:
hello guys,
are there any gains ( in terms of security or anything else) to flush the
buffer in kernel printk() as soon as \n is encountred ?
i am asking because this does not happen in the user space as all of us
I am just saying I know inline keyword. But what is always_inline.
Thanks for replies and explanations. I got it now.
Regards,
Sri.
On Sat, Sep 25, 2010 at 4:48 AM, Michael Blizek
mic...@michaelblizek.twilightparadox.com wrote:
Hi!
On 18:56 Fri 24 Sep , Sri Ram Vemulpali wrote:
Hi all,
On Sat, Sep 25, 2010 at 7:34 PM, Bond jamesbond.2...@gmail.com wrote:
On Fri, Sep 24, 2010 at 5:41 PM, sri bskmo...@gmail.com wrote:
what part is not able to understand?
Here is a program I wrote
but it is dropping characters though I gave 14 bytes to kmalloc and buffer
but still the
Hi...
On Sat, Sep 25, 2010 at 06:51, moussa ba mus...@gmail.com wrote:
The problem I am running into is that I see many instances where calls to
find_get_page return NULL meaning the page could not be found in the page
cache, however, they do not register as major page faults in the kernel
can u please write a code to prove urself( in user space)?
coz till now what i have code ,i have never seen this.( or may be not
noticed this)
mohit verma wrote:
can u please write a code to prove urself( in user space)?
coz till now what i have code ,i have never seen this.( or may be not
noticed this)
See this really simple bit of code below, it probably doesn't do what
you expect.
#include stdio.h
int main(void)
{
javad karabi wrote:
I am very curious about this.
Where exactly does the hello text go, before it is 'flushed' ?
I am thinking that it gets put in some other buffer, then 'flushing' the
buffer does something
to the effect of memcpy the buffer to the framebuffer?
stdout is buffered, the '\n'
Hi guys,
On Sat, Sep 25, 2010 at 5:08 PM, Philip Downer wrote:
javad karabi wrote:
I am very curious about this.
Where exactly does the hello text go, before it is 'flushed' ?
I am thinking that it gets put in some other buffer, then 'flushing' the
buffer does something
to the effect of
On Sun, Sep 26, 2010 at 3:43 AM, Venkatram Tummala
venkatram...@gmail.comwrote:
Hey buddy, i took the module code in your first post modified it to make
it work . I am attaching the code. It works on the latest kernel 2.6.35. If
you are using any other kernel, you may have to change the
On Sat, Sep 25, 2010 at 11:06 PM, Chetan Nanda chetanna...@gmail.comwrote:
as per my understanding (may be wrong), issue is not with the
copy_to/from_user. May be with the return values from bond_read/write
function.
Drivers read/write should return the number of bytes read or written.
Hi,
Replying to the list this time.
On Sat, Sep 25, 2010 at 10:22 PM, Bond jamesbond.2...@gmail.com wrote:
write(1, abcde, 5)= 1
User mode tried to write 5 characters.
The driver only accepted one (which is evidenced by the return code
which is the number of characters
On Sun, Sep 26, 2010 at 3:43 AM, Venkatram Tummala
venkatram...@gmail.comwrote:
This will print the the last character of the string you wrote.
If you would have read the thread from my first post printing the last
character is not my objective I am trying to print the complete string.
As
Your code
/* Registering device */
result = register_chrdev(0, bond, bond_fops);
registers the device with major number 0.Is that possible ?
On Sun, Sep 26, 2010 at 10:16 AM, Bond jamesbond.2...@gmail.com wrote:
On Sun, Sep 26, 2010 at 3:43 AM, Venkatram Tummala
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