From c3c161df40114ed8f7c0a3bebd385c173919de18 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 21 Jun 2006 22:04:13 +0200 Subject: CX2341X port was always set to 'memory', but 'streaming' is also possible From: Hans Verkuil ivtv uses the memory (DMA) interface with the CX2341X, while pvrusb2 and cx88-blackbird use the streaming interface. This setting is now selectable by the driver. Signed-off-by: Hans Verkuil --- linux/Documentation/video4linux/cx2341x/fw-encoder-api.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'linux/Documentation') diff --git a/linux/Documentation/video4linux/cx2341x/fw-encoder-api.txt b/linux/Documentation/video4linux/cx2341x/fw-encoder-api.txt index 58c7243d0..9834b4c76 100644 --- a/linux/Documentation/video4linux/cx2341x/fw-encoder-api.txt +++ b/linux/Documentation/video4linux/cx2341x/fw-encoder-api.txt @@ -270,11 +270,17 @@ Param[0] Name CX2341X_ENC_SET_OUTPUT_PORT Enum 187/0xBB Description - Assign stream output port (not recommended you change setting from default) + Assign stream output port. Normally 0 when the data is copied through + the PCI bus (DMA), and 1 when the data is streamed to another chip + (pvrusb and cx88-blackbird). Param[0] 0=Memory (default) 1=Streaming 2=Serial +Param[1] + Unknown, but leaving this to 0 seems to work best. Indications are that + this might have to do with USB support, although passing anything but 0 + onl breaks things. ------------------------------------------------------------------------------- -- cgit v1.2.3