i want to know can i use char device in kernel to store and read information? what i know only that char device will be used char by char? On Wed, 21 Apr 2004 William J. Beksi wrote : >bunty wrote: > > > > > > > hello, > > i study the kernel source code to find out how kernel writes to /proc > > file system but unable to trace and only fine out that it writes via > > sprintf. IS there any function that allow me to read and write to file. > > regards, > > > > > > >You can implement your own read and write functions using the following >params: >int write_func(struct file* file, const char* buffer, unsigned long >count, void* data); > >int read_func(char* page, char** start, off_t off, int count, int* eof, >void* data); > >For your reference: >http://www.kernelnewbies.org/documents/kdoc/procfs-guide/lkprocfsguide.html >http://www.gelato.unsw.edu.au/~dsw/public-files/kernel-docs/kernel-api/index.html > > >-Bill > > >-- >Kernelnewbies: Help each other learn about the Linux kernel. >Archive: http://mail.nl.linux.org/kernelnewbies/ >FAQ: http://kernelnewbies.org/faq/ >
