From e787937c63137c7d89c4d68adea56b0c253f51d7 Mon Sep 17 00:00:00 2001
From: CleverMouse <theclevermouse@yandex.ru>
Date: Mon, 24 Jun 2013 15:22:56 +0000
Subject: [PATCH] another small fix

git-svn-id: svn://kolibrios.org@3700 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 kernel/trunk/bus/usb/uhci.inc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/trunk/bus/usb/uhci.inc b/kernel/trunk/bus/usb/uhci.inc
index d26bcbdb1b..5b38df5707 100644
--- a/kernel/trunk/bus/usb/uhci.inc
+++ b/kernel/trunk/bus/usb/uhci.inc
@@ -1385,7 +1385,7 @@ end virtual
 ; 1. Initialize ErrorTD to zero.
         and     [edi+uhci_pipe.ErrorTD-sizeof.uhci_pipe], 0
 ; 2. Initialize HeadTD to the physical address of the first TD.
-        push    eax     ; store pointer to the first TD for step ?
+        push    eax     ; store pointer to the first TD for step 4
         sub     eax, sizeof.uhci_gtd
         call    get_phys_addr
         mov     [edi+uhci_pipe.HeadTD-sizeof.uhci_pipe], eax
@@ -1416,7 +1416,8 @@ end virtual
 ; 4. Initialize the first TD:
 ; copy Token from uhci_pipe.Token zeroing reserved bit 20,
 ; set ControlStatus for future transfers, bit make it inactive,
-; set bit 0 in NextTD = "no next TD".
+; set bit 0 in NextTD = "no next TD",
+; zero OrigBufferInfo.
         pop     edx     ; restore pointer saved in step 2
         mov     [edx+uhci_gtd.Token-sizeof.uhci_gtd], eax
         and     byte [edx+uhci_gtd.Token+2-sizeof.uhci_gtd], not (1 shl (20-16))
@@ -1424,6 +1425,7 @@ end virtual
         shl     eax, 6
         or      eax, UHCI_INVALID_LENGTH + (3 shl 27)
                 ; not processed, inactive, allow 3 errors
+        and     [edx+uhci_gtd.OrigBufferInfo-sizeof.uhci_gtd], 0
         mov     [edx+uhci_gtd.ControlStatus-sizeof.uhci_gtd], eax
         mov     [edx+uhci_gtd.NextTD-sizeof.uhci_gtd], 1
 ; 5. Select the corresponding list and insert to the list.