how about using netlink - socket approach ? On Wed, Jul 16, 2008 at 5:32 AM, Markus Franke <[EMAIL PROTECTED]> wrote: > Dear uClinux Developers/Users, > > I have a character device driver which needs to pass data to a user space > application with a high frequency. I am doing this by using the > copy_to_user() system call in the read() operation of the character device > driver. I discovered that this copy operation costs quite a lot of > performance. > > I am wondering whether it would be possible to have a huge FIFO of like 16 > MBytes allocated in kernel memory and to map this memory region to the user > space process. I am not really sure if this would be possible with uClinux > because of the lack of MMU support. > > Any suggestions/comments on this? > > > Best Regards, > Markus > > > _______________________________________________ > uClinux-dev mailing list > [email protected] > http://mailman.uclinux.org/mailman/listinfo/uclinux-dev > This message was resent by [email protected] > To unsubscribe see: > http://mailman.uclinux.org/mailman/options/uclinux-dev >
-- "How can anything be impossible when impossible itself says I M Possible???" Mihir _______________________________________________ uClinux-dev mailing list [email protected] http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by [email protected] To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
