hi all, i have a shared counter which is filled by device driver and emptied by interrupt handler my IH cheacke whether counter>0 if yes it does some work, now when i run the program my device driver fills upto N values increment the counter,simultaneously IH grabe it, there is one user level program which writes to device driver's buffer and IH grabs from that buffer, but as IH is very fast it grabs all values as soon as they filles but once counter reaches 0 , in IH counter > 0 condition becomes false, and does nothing,now soon then device driver again fills the N value but this time IH is not checking that condition , i had declared the counter as atomic_t plz let me know the reason thanks to all Prasanna __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
