From 4dcef52400fa6b9eb2de589300ae0151a1c65b3b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 4 Aug 2005 12:53:30 -0700 Subject: [PATCH] v4l: oopsfix for BTTV on badly behaved PCI chipsets no_overlay bttv parameter implemented to fix OOPS on some PCI chipsets (like some VIA) with these behaviors: 1) If pci_quicks does identify the chip as having troubles to handle PCI2PCI transfers, no_overlay defaults to 1. The user may force it to 0, to reenable (not recommended). 2) For newer chipsets not blacklisted, no_overlay=1 is provided as a workaround until PCI chipset included on /drivers/pci/quirks.c Thanks to Bodo Eggert <7eggert@gmx.de> Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/video4linux/bttv/Insmod-options | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/video4linux') diff --git a/Documentation/video4linux/bttv/Insmod-options b/Documentation/video4linux/bttv/Insmod-options index 7bb5a50b077..fc94ff235ff 100644 --- a/Documentation/video4linux/bttv/Insmod-options +++ b/Documentation/video4linux/bttv/Insmod-options @@ -44,6 +44,9 @@ bttv.o push used by bttv. bttv will disable overlay by default on this hardware to avoid crashes. With this insmod option you can override this. + no_overlay=1 Disable overlay. It should be used by broken + hardware that doesn't support PCI2PCI direct + transfers. automute=0/1 Automatically mutes the sound if there is no TV signal, on by default. You might try to disable this if you have bad input signal -- cgit v1.2.3