8 Sep
2015
8 Sep
'15
3:56 p.m.
On Mon, Sep 7, 2015 at 10:12 PM, Stefan Brüns stefan.bruens@rwth-aachen.de wrote:
Using NAKs on empty RX fifo for bulk in transfers is the right choice for a interrupt driven model, but U-Boot uses polling and expects an immediate answer if there is no incoming packet. Using ZLP Bulk In Response (BIR) mode avoids unexpected timeouts in the host controller driver.
As ZLP mode is reset default, there is no need to set it.
Signed-off-by: Stefan Brüns stefan.bruens@rwth-aachen.de
LGTM.
Acked-by: Joe Hershberger joe.hershberger@ni.com