[PATCH v2] ehci-hcd: preserve DTC in QH for interrupt transactions
s.hauer at pengutronix.de
Thu Mar 10 01:02:15 PST 2016
On Wed, Mar 09, 2016 at 01:50:54PM +0300, Aleksey Kuleshov wrote:
> In Linux ehci-q Data Toggle Control bit for interrupt transactions
> is preserved in Queue Head (EHCI 3.6.2). So don't set 14's bit in
> qh_endpt1 and don't manage toggle bit anywhere in int transactions.
> This fixes an idle issue for USB keyboards, where keys
> were physically changed but barebox haven't seen them in polling
> until the next USB keyboard polling occurs.
> Signed-off-by: Aleksey Kuleshov <rndfax at yandex.ru>
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