On Wed, Apr 10, 2013 at 08:10:41AM -0700, Guenter Roeck wrote: > > have no idea how to even find out if multiple watchdogs are open on the > > system. Is there a list I could walk? And with regard to 'watchdog is > > /* the dev_t structure to store the dynamically allocated watchdog devices */ > static dev_t watchdog_devt; > > One way to look up the allocated watchdogs might be to loop through all kobj > instances for the major device using kobj_lookup. Don't know if there is a > better way. Hmm, I got around to poking at this today and I am not sure kobj_lookup will work. Besides being surrounded with another mutex, I don't have access to the character device domain to pass to kobj_lookup. Perhaps I am not reading the code right, but I can't find a good way forward. The only other hack I can think of, is to embed a list object in the watchdog structure and list_add each new register'd watchdog. Then it would be trivial to walk the watchdog list. Thoughts? Cheers, Don > > > running', I thought 'watchdog_active' would do that. But again, I could > > be misreading the code. > > > You are right. Missed that part, sorry. > > Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
