3 cancellation race concerns - better tracking of kernel feedback?
7 review functionality missing over 0.1
8 endianness of control setup, issues when resubmitting transfers
9 make libusb_get_pollfds return const?
11 make descriptor things const?
14 1.0 API style/naming points to reconsider
15 =========================================
16 typedef _cb or _cb_fn or _cb_t?
17 typedef as-is or pointers? libusb_dev_t rather than libusb_dev *?
21 optional timerfd support (runtime detection)
22 notifications of hotplugged/unplugged devices
23 use poll() rather than select()?
24 offer API to create/destroy handle_events thread