On Sun, Sep 26, 2010 at 12:10 PM, Venkatram Tummala <venkatram867@xxxxxxxxx> wrote:
Your code is giving me some error Yes, it is possible to pass in 0 for register_chrdev. Please be clear what you want to achieve, from your subject line & the post. The subject line & the first few lines of the post indicates that
That is not my fault if you do not read the thread for one character even I was able to make it.
you need something which prints only the last character. And you go on creating a rucus around here.
Who is creating rucus me or people giving me non sensical lecture to read malloc they hide their incompetency by giving lecture to Google.
I have updated the code & attached it. This can only read & write 10 characters. Now, please dont tell us that it is not you wanted or it doesn't work. Please spare us.
I did
Step 1) mknod /dev/bond c 0 0
Step 2) chmod 666 /dev/bond
Step 3) insmod bond.ko
Step 4) root@bond:~# lsmod | grep bond
bond 2031 0
Step5) echo -n abcde > /dev/bond
gives me error
bash: /dev/bond: No such device or address
Step 6) where as I can see ls -l /dev/bond
crw-rw-rw- 1 root root 0, 0 2010-09-26 12:14 /dev/bond
in your code you have done in memory_read
*f_pos = *f_pos + count;
why have you done this?
What purpose it serves?
