> i noticed the problem with the limited number of BH handlers and
> many serial multiport cards registering their own bottom half.
>
> How are bottom halfs shareable and is it acceptable to use serial_bh
> and/or immediate_bh for a serial multiport card ?
You don't need to use a separate bottom half handler at all. Just
make your driver call queue_task() to queue your function to tq_immediate
and call mark_bh(IMMEDIATE_BH). See <linux/tqueue.h>.
Have a nice fortnight
-- Martin `MJ' Mares <mj@ucw.cz> http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "It's a lemon tree, my dear Watson." -- Sherlock Holmes (?)- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/