Hi Laurent,
On Sun, Feb 19, 2012 at 2:27 PM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> Hi Ryan,
>
> On Saturday 18 February 2012 20:59:57 Ryan wrote:
>> hello,
>> I am using media-ctl on the panda board. The sensor gets detected. But
>> media-ctl doesnt print anything.
>> The kernel is cloned from omap4 v4l git tree: commit id:
>> 3bc023462a68f78bb0273848f5ab08a01b434ffa
>>
>> what could be wrong in here?
>>
>> ~ # ./media-ctl -p
>> Opening media device /dev/media0
>> Enumerating entities
>> Found 0 entities
>> Enumerating pads and links
>> Device topology
>>
>> What steps i need to follow get output from sensor in terms of
>> arguments to media-ctl and yavta.
>
> Could you please first make sure that media-ctl has be compiled against header
> files from the kernel running on your board ?
>
Thank you, That did the trick, Now i am able to run media-ctl. I am
trying to capture YUV422.
When i run yavta, It blocks infinitely at STREAM ON, I see that the
ISS interrupts keeps incrementing.
Am i missing something?
#yavta /dev/video0 -n1 -c5 -s640x480 -fUYVY -Ftest.yuv
Device /dev/video0 opened: OMAP4 ISS CSI2a output (media).
Video format set: width: 640 height: 480 buffer size: 614400
Video format: UYVY (59565955) 640x480
1 buffers requested.
length: 614400 offset: 0
Buffer 0 mapped at address 0x4028e000.
[ 577.605590] Enable STREAM ON>..
After configuring using the media-ctl, This is how my device topology
looks like:
Is this okay?
Device topology
- entity 1: OMAP4 ISS CSI2a (2 pads, 2 links)
type V4L2 subdev subtype Unknown
device node name /dev/v4l-subdev0
pad0: Sink [UYVY 640x480]
<- "ov5640 3-0036":0 [ENABLED,IMMUTABLE]
pad1: Source [UYVY 640x480]
-> "OMAP4 ISS CSI2a output":0 [ENABLED]
- entity 2: OMAP4 ISS CSI2a output (1 pad, 1 link)
type Node subtype V4L
device node name /dev/video0
pad0: Sink
<- "OMAP4 ISS CSI2a":1 [ENABLED]
- entity 3: ov5640 3-0036 (1 pad, 1 link)
type V4L2 subdev subtype Unknown
device node name /dev/v4l-subdev1
pad0: Source [UYVY 640x480]
-> "OMAP4 ISS CSI2a":0 [ENABLED,IMMUTABLE]
Thank you,
Regards,
Ryan
> --
> Regards,
>
> Laurent Pinchart
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