On Fri, May 4, 2012 at 6:55 AM, 夏业添 <[email protected]> wrote:
> Hi Chetan, > > Thanks for reply and it works. And I want to verify some other things. > > Is it a good way to use workqueue to do this job: send data to user > space through netlink socket from kernel? > > Thanks! > > 2012/5/4 Chetan Nanda <[email protected]>: > > > > On May 3, 2012 8:37 PM, "夏业添" <[email protected]> wrote: > >> > >> Hi, > >> > >> I want to use workqueue in my irq handler. Some materials say that I can > >> use > >> > >> INIT_WORK( &work, function, &data ); > >> > >> to initialize work, whose type is struct work_struct, and data is > >> something should be passed to function. > >> however, it seems that now the macro INIT_WORK() only accept two > >> parameters:&work and function. > >> > >> My problem is how to pass data to the function and why they change that > >> macro? > >> > >> Thanks! > >> > > May be you are looking for something like this: > > > http://www.linuxforums.org/forum/kernel/183688-init_work-two-arguments.html > > > > ~chetan _______________________________________________ > >> Kernelnewbies mailing list > >> [email protected] > >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > Hi, To send data from kernel space and user-space see kernel's notification mechanism like fanotify which works on by creating an anonymous fd in the user-space process's context which then might perform normal read() and write() call to receive and send data to kernel. - Rohan
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