Changeset 9af3281 in mainline

Timestamp:

2017-07-22T01:07:02Z (7 years ago)

Author:

Jaroslav Jindrak <dzejrou@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

110d795

Parents:

12fba858

Message:

Added initialization of allocated ERST segments, previously garbage data caused an invalid segment size to be passed to the xHC which in result collapsed and did not respon to commands.

File:

• uspace/drv/bus/usb/xhci/trb_ring.c (modified) (1 diff)

uspace/drv/bus/usb/xhci/trb_ring.c

@@ -243 +243 @@
         if (ring->erst == NULL)
                 return ENOMEM;
+        memset(ring->erst, 0, PAGE_SIZE);
 
         xhci_fill_erst_entry(&ring->erst[0], segment->phys, SEGMENT_TRB_COUNT);