I just want to signal the user application that a timer interrupt has been generated by the module. I.e. the module creates timer interrupts on every x seconds, and I have to signal this somehow to the user application ... -----Ursprüngliche Nachricht----- Von: Gagneraud Christian [mailto:chgans@tuxfamily.org] Gesendet: Dienstag, 25. November 2003 18:41 An: kernelnewbies@nl.linux.org Cc: Juergen Oberhofer Betreff: Re: Send Signal to application from kernel module Le mar 25/11/2003 à 15:44, Juergen Oberhofer a écrit : > hm the thing is, that the module doesn't know the pid of the user process... > I would need a function, equivalent to the > int kill(pid_t pid, int sig); > function, defined in signal.h. Because by setting pid = -1 the signal is > sent to > every process except for process 1. > Does there exist such a function for the kernel space? If not, does somebody > know what other possibilities do I have? > regards > juergen Hi, You must at least know something useful about the process! (PID / task_struct), what is the criter of selection for the process you want to kill()? Does it had opened a device you'he wrote the module? Chris > > > > hi, > > you can try > > kill_proc(pid,SIGUSR1,1); > > thx > > --rahul > > > > On Tue, 2003-11-25 at 19:18, Juergen Oberhofer wrote: > > > Hi, > > > is there a function to send a SIGUSR1 signal from a kernel module to a > > > program which > > > runs in user space? > > > Regards > > > Juergen -- @+ Christian -- Christian Gagneraud <chgans AT tuxfamily DOT org> WISIRC <http://wisirc.tuxfamily.org> -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
