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V4L/DVB (8464): cx23885: Bugfix for concurrent use of /dev/video0 and /dev/video1

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From: Linux Kernel Mailing List
Subject: V4L/DVB (8464): cx23885: Bugfix for concurrent use of /dev/video0 and /dev/video1
Date: Monday, July 28, 2008 - 10:02 am

Gitweb:     http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=28901a...
Commit:     28901ab621bb56cd2aa9670dc7ce016ba80ec45c
Parent:     35f92b2af8230ffc1146e2317e2068fefd7caacb
Author:     Steven Toth <stoth@hauppauge.com>
AuthorDate: Sat Jun 28 00:48:18 2008 -0300
Committer:  Mauro Carvalho Chehab <mchehab@infradead.org>
CommitDate: Sat Jul 26 12:54:21 2008 -0300

    V4L/DVB (8464): cx23885: Bugfix for concurrent use of /dev/video0 and /dev/video1
    
    With the HVR1800, trying to use video0 and video1 simultaneously caused
    buffer corruption in the PCIe bridge. This fix reallocates video1
    buffer locations to avoid the issue.
    
    Signed-off-by: Steven Toth <stoth@hauppauge.com>
    Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/cx23885/cx23885-core.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index d17343e..e14371e 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -104,8 +104,8 @@ static struct sram_channel cx23887_sram_channels[] = {
 	[SRAM_CH03] = {
 		.name		= "TS1 B",
 		.cmds_start	= 0x100A0,
-		.ctrl_start	= 0x10780,
-		.cdt		= 0x10400,
+		.ctrl_start	= 0x10670,
+		.cdt		= 0x10810,
 		.fifo_start	= 0x5000,
 		.fifo_size	= 0x1000,
 		.ptr1_reg	= DMA3_PTR1,
--


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