Steve Markgraf a854ae8b48 lib: use USB zero-copy transfers if possible
Decreases CPU load especially for embedded machines.
Requires Linux >= 4.6 and libusb >= 1.0.21. If this
is not the case or the allocation fails, we will
fall back to buffers allocated in userspace.

Signed-off-by: Steve Markgraf <steve@steve-m.de>
2018-05-01 14:23:37 +02:00
..
2018-04-26 23:51:15 +02:00
2012-04-25 22:47:30 +02:00