Use kernel timers: linux/timer.h Konstantyn -----Original Message----- From: l x [mailto:whereisit28@yahoo.com] Sent: Monday, June 14, 2004 3:07 PM To: prasanna wakhare Cc: kernelnewbies@nl.linux.org Subject: Re: Help - how to put a module into sleep for a while? Thanks for the info. The reason I do this is that modB should do something only after modA is ready (completes some tasks). So to check if modA is ready, I put a flag (int my_flag) in modA. modA sets my_flag to 1 after it completes the tasks. modB checks my_flag by calling func_of_modA()defined in modA every 1 second. If I can not put modB in sleep, what is the easiest way to do this? Thanks, T. --- prasanna wakhare <prasannawakhare@yahoo.com> wrote: > hi, > module wont sleep at all.You are putting down kernel > to sleep! In device driver also the process which > calls modules read/write function sleeps > as one can sleep in process context,but this is > process not module. > i think you try it and definately yr system will > halt. > i have'n't tried it,the reason is simple you better > think . Rather why you need to do this,such things > i had never seen,if the module can sleep would be > true? > then i really want to know the thoery behind it. > Prasanna > --- l x <whereisit28@yahoo.com> wrote: > > Hi, > > > > I'm working on a module (modB) that works with an > > existing module (modA). > > > > One of modB's functions calls a function, > > func_of_modA(), defined in modA. If the returned > > value of func_of_modA() is 0, then modB needs to > > sleep > > (not busy loop) for 1 sencond and then calls > > func_of_modA() again...until the returned value is > > 1. > > > > What is the best/easiest way to implement this > type > > of > > wait? Could some one please help me on this? > > Sample > > code or code snip would be very helpful. > > > > Thanks, > > > > T. > > > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Friends. Fun. Try the all-new Yahoo! Messenger. > > http://messenger.yahoo.com/ > > > > -- > > Kernelnewbies: Help each other learn about the > Linux > > kernel. > > Archive: > > http://mail.nl.linux.org/kernelnewbies/ > > FAQ: http://kernelnewbies.org/faq/ > > > > > > > > > > __________________________________ > Do you Yahoo!? > Friends. Fun. Try the all-new Yahoo! Messenger. > http://messenger.yahoo.com/ > __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
