> `the class of devices in question' was cryptographic devices, and possibly
> other transactional DSPs. I don't consider audio to be transactional.
> in any case, you can do transactional things with two threads, as long
> as they each have their own fd on the device. Think of the fd as your
> transaction handle.
Thats a bit pathetic. So I have to fill my app with expensive pthread locks
or hack all the drivers and totally change the multi-open sematics in the ABI
I think I'll stick to ioctl cleaned up
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