On Thu, Sep 18, 2008 at 17:09, Fundu wrote: >> turning off interrupts just masks them. the interrupt >> hardware should >> "latch" them and they fire when you reenable >> interrupts. >> >> You loose track of "how many" not if any >> happened... > > a follow up question, > why do we need to save the flags then ? if the interrupt hardware would > latch them ? > can we not just disable all interrupts ?
you really should just read a book on the topic. LDD3 covers these intricacies (and a lot more), as does Essential Linux Device Drivers. -mike -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
