This line is incorrect. You need to learn how kmalloc (or any *alloc for that matter) works because it seems like you don't realise what is happening with this statement. memory_buffer = kmalloc(1, GFP_KERNEL); On Mon, May 9, 2011 at 1:26 PM, Aravind Vijayan <aravind1123@gmail.com>wrote:
Hi all, Let me begin this post with thanx all to whom help me on previous problem.I have completed jobs such as writing,making,inserting the module.
i create a character special file using mknod in /dev directory.
i try to write data to my file by" echo -n "abcd" > /dev/memory "
and when i try to read from that file i get the last char was written to that file that is "d"
here is my code:http://pastebin.com/9YsJetek
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-- /manohar