CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2016/10/04 08:12:05
Modified files:
sys/dev/usb : usbdi.c
Log message:
Let the stack perform DMA synchronization instead of doing it (partially)
in HC drivers.
Only ehci(4) was performing pre & post synchronization completly. Now
pre-synchronization is done in usbd_transfer() and post-synchronization
in usbd_transfer_complete(). This will allow us to remove the partial
synchronization primitives from the pipe handlers.
This is similar to what FreeBSD did in r158998, r164519 and r176203.
>From Marius Strobl.
ok kettenis@
