On 5/15/06, fred xvii <fredxvii@xxxxxxxxxxx> wrote:
Hi, I'd like to pass some data from kernel to user space. So, I create an entry in procfs, and want to have a process read this new entry to get its data. However, I can have big data, more than the available place. As far as I understand it, the read() function one creates to read a proc entry is called by fs/proc/generic.c:proc_file_read(). There max available size is given by: count = min_t(size_t, PROC_BLOCK_SIZE, nbytes); where PROC_BLOCK_SIZE is 1024. So, at most, I can write no more than 1k in my proc entry. Unfortunately, I need to write more. So my (first) question is simple: how to write more? However, if this is not possible, it can mean that /proc is not appropriate to what I want to do. So, is there another solution, more correct?
What about using a character device? It is easier to implement and you pass data of larger size. regards Manish Regmi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
