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authorHans Verkuil <hverkuil@xs4all.nl>2006-06-21 16:04:13 -0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-06-25 01:05:23 -0400
commit45ad9f8b44b06bf1e91b4b3c338406c2233f0482 (patch)
treeb2cccb49543bcb7289d084a803c44354fcb64115 /Documentation/video4linux
parent54aa9a21ca03cf41d911ada969e86f27ce58bab9 (diff)
V4L/DVB (4202): allow selecting CX2341x port mode
CX2341X port was always set to 'memory', but 'streaming' is also possible 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 <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'Documentation/video4linux')
-rw-r--r--Documentation/video4linux/cx2341x/fw-encoder-api.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/video4linux/cx2341x/fw-encoder-api.txt b/Documentation/video4linux/cx2341x/fw-encoder-api.txt
index f74b0ae4a769..001c68644b08 100644
--- a/Documentation/video4linux/cx2341x/fw-encoder-api.txt
+++ b/Documentation/video4linux/cx2341x/fw-encoder-api.txt
@@ -270,11 +270,17 @@ Param[0]
270Name CX2341X_ENC_SET_OUTPUT_PORT 270Name CX2341X_ENC_SET_OUTPUT_PORT
271Enum 187/0xBB 271Enum 187/0xBB
272Description 272Description
273 Assign stream output port (not recommended you change setting from default) 273 Assign stream output port. Normally 0 when the data is copied through
274 the PCI bus (DMA), and 1 when the data is streamed to another chip
275 (pvrusb and cx88-blackbird).
274Param[0] 276Param[0]
275 0=Memory (default) 277 0=Memory (default)
276 1=Streaming 278 1=Streaming
277 2=Serial 279 2=Serial
280Param[1]
281 Unknown, but leaving this to 0 seems to work best. Indications are that
282 this might have to do with USB support, although passing anything but 0
283 onl breaks things.
278 284
279------------------------------------------------------------------------------- 285-------------------------------------------------------------------------------
280 286